Lithium Diffusion Research Articles

Boron doped Ti2Nb10O29 nanosheets core/shell arrays as advanced high-energy anode for fast lithium ions storage

Titanium niobium oxide (Ti2Nb10O29, TNO) as anode for high-energy lithium ion batteries (LIBs) typically suffers from sluggish kinetics and reaction activity because of its inferior electronic/ionic conductivity and easy aggregation feature. Herein, we present a novel synergistic strategy to tackle such problems of TNO by combining boron (B) doping and porous carbon nanosheet (PCN) arrays support. Experiment results and theoretical calculations demonstrate that the doped B substantially ameliorates the intrinsic electronic/ionic conductivity of TNO, increases the oxygen vacancy content in TNO, and accelerates lithium ion diffusion. Meanwhile, high-conductive PCN arrays as growth skeleton can avoid the agglomeration of B-TNO particles. As a result, the as-prepared PCN/B-TNO anode delivers an impressive specific capacity of 303 mAh g−1 at 1 C and 104 mAh g−1 at 20 C, superior to the PCN/TNO anode. Additionally, PCN/B-TNO anode also possesses a prominent long-time durability (85 % capacity retention after 2000 cycles). Our work paves a new way of rationally constructing high-energy anodes for fast energy storage and release.

High-Entropy Rock-Salt Surface Layer Stabilizes the Ultrahigh-Ni Single-Crystal Cathode.

Single-crystalline Ni-rich layered oxides are one of the most promising cathode materials for lithium-ion batteries due to their superior structural stability. However, sluggish lithium-ion diffusion kinetics and interfacial issues hinder their practical applications. These issues intensify with increasing Ni content in the ultrahigh-Ni regime (≥90%), significantly threatening the practical viability of the single-crystalline strategy for ultrahigh-Ni layered oxide cathodes. Herein, by developing a high-entropy coating strategy, we successfully constructed an epitaxial lattice-coherent high-entropy rock-salt layer (∼3 nm) via Zr and Al doping on the surface of the single-crystalline cathode LiNi0.92Co0.05Mn0.03O2 through an in situ modification process. The surface high-entropy rock-salt layer with tailored Ni valence and lattice coherence not only greatly improves lithium-ion diffusion kinetics but also suppresses interface parasitic reactions and surface structural degradations. The high-entropy surface layer-stabilized ultrahigh-Ni single-crystalline cathode (SC-Ni92-ZA) demonstrates significantly improved rate and cycling performances (127.5 mAh g-1 at 20C, capacity retention of 74.9% after 500 cycles at 1C) in a half-cell. The SC-Ni92-ZA exhibits a capacity retention of 87.1% after 600 cycles at 1C in a full-cell. This epitaxial lattice-coherent high-entropy coating strategy develops a promising avenue for developing high-capacity, long-life cathode materials.

Restraining Planar Gliding in Single-Crystalline LiNi0.9Co0.05Mn0.05O2 Cathodes by Combining Bulk and Surface Modification Strategies.

The delamination cracking from planar gliding along the (003) facets and anisotropic lattice strain perpendicular to the (003) facets inevitable lead to degradation of Ni-rich single-crystal cathode materials, adversely affecting their cyclability. Herein, we rationally design a single-crystal LiNi0.9Co0.05Mn0.05O2 (SC90) cathode with robust chemo-mechanical properties, in which coherently grown MgO6 octahedra and BO4 tetrahedra are incorporated into the lattice, and a stabilizing Mg3(BO3)2 layer is concurrently formed on the particle surface. Multiscale in/ex situ characterizations and theoretical calculations indicate that introducing the MgO6 and BO4 units leads to a "pinning effect" within the layered structure. This in turn strongly mitigates mechanical degradation by reducing planar gliding and delamination cracking over extended cycling. Moreover, the Mg3(BO3)2 coating maintains fast lithium diffusion by suppressing parasitic reactions at the cathode|electrolyte interface. The tailored SC90 cathode exhibits a capacity retention of ~88% after 300 cycles at 5C rate, significantly outperforming the pristine counterpart (~60%). Additionally, a pouch-type full cell with a graphite anode sustains a specific discharge capacity of 177 mAh g-1 after 500 cycles, with 90% capacity retention. This work highlights the "pining effect" in preventing unfavorable slab sliding and structural deterioration, offering new insights for designing advanced ultrahigh Ni single-crystal cathodes.

Modulating Diffusion Double Layer by In Situ Constructed Ultrathin Dipole Layer Towards Uniform Lithium Deposition

The popularization of lithium metal anode has been limited due to uneven deposition processes and lithium dendrites. Guiding homogeneous nucleation during the initial plating stage of lithium is vital to obtain a stable lithium metal anode. Herein, an ultra-thin dipole layer that can be used to regulate the diffusion layer is prepared by anodizing and strong polarization on a titanium foil collector. It is demonstrated that the vertical distributions of ionic concentration and electrostatic potential on the nBTO@Ti electrode are modulated by the ultrathin dipole layer, leading to uniform diffusion of lithium ions and reduction of overpotential. Consequently, a uniform lithium nucleation and plating process are achieved on a polarized BaTiO3 collector, which is verified by microscopy. The average coulombic efficiency of the deposition-dissolution process is as high as 98.3% for 300 cycles at 0.5 mA cm−2. Moreover, the symmetrical cell shows flat potential platforms of 25 mV for 1000 cycles at 0.5 mA cm−2. Full cell with LiFePO4 as cathode also reveals excellent electrochemical performances with a steady discharge capacity of 120 mAh g−1 at 1 C and a high capacity retention of 93.3% after 200 cycles.

Integrated hierarchical lanthanum niobium oxide surface coating to stabilize high-voltage performance and suppress Ni2+/Li+ cationic disorder in nickel-rich layered cathodes

High‑nickel ternary materials are the most promising lithium battery cathodes in terms of application and development potential. These materials face significant problems at elevated voltage, including cation mixing, interfacial reactions, microcracks, and lattice oxygen loss, which undermine their cyclic stability and safety. Metal oxide coating is the most direct and effective solution to alleviate this material degradation. Herein, we present an integrated LaNbO4 (LN) surface coating strategy for improving LiNi0.88Mn0.02Co0.10O2's (NMC-88) electrochemical performance and structural stability. The coating materials penetrate the bulk-layered structure and enhance structural integrity. Additionally, it protects the cathode surface against undesirable parasitic side reactions and achieves excellent electrochemical properties, optimal rate performance, and cyclic stability by improving lithium diffusion. The modified cathode maintains a specific capacity of 42 %, while the pristine NMC-88 cathode holds 25.69 % after 150 cycles at 2.8–4.5 V under 2C. The surface modification method reduces the H2-H3 phase and the overgrowth of the solid electrolyte interface, leading to enhanced cyclic performance. In comparison to NMC-88, the improved electrochemical performance and structural integrity of LN-coated NMC-88 are linked to the decrease in microcrack defects during cycling.

Role of Short-Range Order on Diffusion Coefficients in the Li-Mg Alloy.

Li-Mg alloys are important because of their beneficial role in fostering uniform plating and stripping of lithium in all-solid-state batteries. The alloy forms a solid solution on the BCC crystal structure when the lithium content is greater than x ≈ 0.3. The activation barriers of lithium and magnesium exchanges with a vacancy, crucial for substitutional diffusion, are predicted to be exceptionally low and almost identical, with negligible dependence on the alloy composition. The equilibrium vacancy concentration at room temperature is predicted to be very low, and it also remains almost constant with no dependence on Mg content in the alloy (for ). Nevertheless, both experiments and kinetic Monte Carlo simulations indicate that the tracer diffusion coefficients decrease by almost an order of magnitude with the addition of Mg to the alloy. In this contribution, the crucial role that chemical short-range order plays in affecting the diffusion coefficients is studied. Chemical short-range order is found to increase the effective activation barrier for lithium and magnesium diffusion by making successive atomic hops with vacancies correlated.

Synergistic effect of molybdenum dioxide wrapped nitrogen doped carbon nanotubes in binder-free anodes for enhanced lithium storage properties

Molybdenum dioxide (MoO2) is regarded as a potential anode for lithium-ion batteries due to its highly theoretical specific capacity. However, its further application in lithium-ion battery is largely limited by insufficient practical discharge capacity and cyclic performance. Here, MoO2nanoparticles are in-situ grown on three-dimensional nitrogen doped carbon nanotubes (NCNTs) on nickel foam substrate homogeneously using a simple electro-deposition method. The unique structural features are favorable for lithium ions insertion and extraction and charge transfer dynamics at electrode/electrolyte interface. As a proof of concept, the as-synthesized nanocomposites have been employed as anode for lithium-ion battery, exhibiting a reversible and significantly improved discharge capacity of ∼517 mA h g-1at the current density of 150 mA g-1as well as superior cycle and rate performance. The first-principle calculations based on density functional theory and electrochemical impedance spectroscopy results demonstrate a reduced energy barrier of lithium ions diffusion, improved lithium storage behavior, reduced structure collapse, and significantly enhanced charge transfer kinetics in MoO2/NCNTs nanocomposites with respect to MoO2powder. The excellent performance makes as-prepared MoO2/NCNTs nanocomposites promising binder-free anode for high performance lithium-ion batteries. This work also provides important theoretical insights for other state-of-the-art batteries design.

Liquid metal-enhanced MoS2 nanocomposite for self-healing colloidal anodes in lithium-ion batteries

Energy storage is pivotal in addressing global energy challenges, with lithium-ion batteries (LIBs) at the forefront. However, their longevity is often limited by anode material degradation. Here, we introduce a novel LM/AgNWs@MoS2 nanocomposite anode material, synthesized via a one-step hydrothermal method, which integrates liquid metal's fluidity with silver nanowires' conductivity and MoS2's rapid lithium-ion diffusion. This composite demonstrates exceptional cycling stability, maintaining 468 mA h g−1 over 2000 cycles at 1 A g−1, and self-heals electrode cracks, offering a significant advancement for LIBs durability and safety. The LM/AgNWs@MoS2 nanocomposite addresses the critical need for durable, self-healing anode materials in LIBs, pushing forward the development of next-generation energy storage solutions.

Green synthesis of SiOx/C-TiO2 with continuous conductive network towards enhancing lithium storage performance

High-capacity SiOx anodes face significant challenges in practical applications due to their low conductivity and high expansion rate. The combination of nanoengineering and carbon capping processes has been proven to address these issues. However, most carbon capping techniques cannot ensure uniform capping and fail to form a continuous conductive phase between active materials. This work proposes a green (solvent-free) and facile method for constructing SiOx/C-TiO2 (SCT@CN) nanocomposites by creating a three-dimensional carbon conductive network from gelatin-derived carbon and doping with titanium dioxide nanoparticles (TiO2 NPs). Comparison of TiO2 NPs with varying doping levels reveals that the synergistic effect between the conductive carbon network and TiO2 NPs enhances both the structural stability of batteries during charge/discharge cycles and the efficiency of active material utilization and lithium-ion diffusion. With the increase of TiO2 NPs, the capacity retention and ICE of the electrode improved, while the initial discharge capacity decreased. Notably, the SCT-2@CN electrode with 10 wt% TiO2 NPs exhibits the best electrochemical performance, with an initial coulombic efficiency (ICE) of 73.2 %. After 700 cycles at a high current density of 2.0 A g−1, it maintained a capacity of 503 mAh g−1, with a capacity retention rate of 81.86 %. The optimized carbon capping process and introduction of novel elements have the potential to enhance a range of energy storage materials.

Surface iron concentration gradient: A strategy to suppress Mn3+ Jahn-Teller effect in lithium manganese iron phosphate

To address the low energy density of LiFePO4 (LFP) for electric vehicles and high-voltage energy storage, LiMn0.5Fe0.5PO4 (LMFP) provides a potential solution but faces performance degradation due to Mn3+-induced Jahn-Teller distortion and Mn ion dissolution during cycling. This study proposes a surface engineering strategy to enhance LMFP’s electrochemical performance by increasing surface iron concentration and reducing manganese content, based on the electronic differences between Mn3+ and Fe3+ in MO6 octahedra. Density Functional Theory (DFT) calculations confirmed the viability of this approach by analyzing volume changes and binding energies with HF during charging. Guided by DFT, an LMFP@LFP/C material was synthesized with a high-iron-concentration surface layer (∼2 nm), as observed through AC-STEM. Post-cycling TEM analysis and corrosion simulations demonstrated that LMFP@LFP/C suppresses Mn ion dissolution and stabilizes the crystal lattice compared to unmodified LMFP/C. Electrochemical tests showed that LMFP@LFP/C has superior electronic conductivity and faster lithium-ion diffusion. It delivered an initial discharge capacity of 150.82 mAh g−1 at 0.1C, surpassing LMFP/C (147.65 mAh g−1). At 1C, LMFP@LFP/C retained 95.85 % of its capacity after 500 cycles, significantly outperforming LMFP/C (74.18 %). This surface modification strategy advances phosphate-based cathode materials for electric vehicles and renewable energy applications.

INSIGHTS INTO THE ELECTROCHEMICAL PROPERTIES OF GERMANIUM-COBALT-INDIUM NANOSTRUCTURES IN A WIDE TEMPERATURE RANGE

Germanium-cobalt-indium (Ge-Co-In) nanostructures are a promising material for negative electrodes of lithium-ion batteries aimed for arctic exploitation. Electrochemical impedance spectroscopy was used for a detailed study of the interaction of Ge-Co-In nanostructures with lithium in a temperature range from ‒35 to +20°C. The discharge capacity at temperatures of 20, 0, ‒10, ‒20, and ‒35°C amounted to 1400, 1228, 1040, 907, and 793 mAh g‒1, respectively. The impedance spectra measured at various lithiation degrees were found to differ but insignificantly whereas temperature variation resulted in notable changes in the spectra. A normalized charge transfer resistance for Ge-Co-In nanostructures was significantly (more than an order of magnitude) less than for Ge-In nanowires (obtained by the same method, but without the addition of cobalt salt into the electrolysis solution). It is this difference in charge transfer resistance that can explain the difference in the shapes of the impedance spectra for both objects. Also, in contrast to data for Ge-In nanowires, the dependences of the lithium diffusion coefficient in Ge-Co-In nanostructures on potential had a clearly defined minimum. The lithium diffusion coefficient in Ge-Co-In nanostructures slightly exceeded that in Ge-In nanowires, and the activation energy of lithium diffusion in Ge-Co-In nanostructures was marginally less than in Ge-In nanowires.

Devitrified silica minerals glass of tanohataite (LiMn2Si3O8F) mineral as anode material for lithium-ion batteries

Devitrified silica minerals glass was obtained from stoichiometric tanohataite (LiMn2Si3O8F) mineral prepared by melt quench route. Low-quartz and cristobalite (∼19.5 %) were developed in glass during melt cooling and casting the glass melt. However, a scanning electron microscope (SEM) for the devitrified glass showed nanoscale particles scattered in a few crystallized spots. When it was tested as an anode for lithium-ion batteries, a relatively high initial capacity of ca.785 mAh g−1 was obtained at 50 mA g−1 as an initial discharge capacity. Very good stability with excellent capacity retention (sometimes it exceeds 100 %) was observed based on the 2nd discharge capacity until the 500th cycle with about 100 % coulombic efficiency. The sample showed good rate capability as it still delivers a capacity of 26 mAh g−1 after increasing the current density 40 times of magnitude. Also, it is a flexible material as after this considerable load, it can restore 185 mAh g−1 after returning to the initial low current (50 mA g−1). The electrochemical performance was supported by electrochemical impedance (EIS) measurement, which showed a decrease in EIS and an increase in lithium diffusion upon extended cycling. This unique electrochemical performance for this multicomponent non-crystalline glass was formerly supported by XPS characterization, which emphasized the presence of Mn4+ in the synthesized sample.

Tailored PEO/PEG-PPG Polymer Electrolyte for Solid-State Lithium-Ion Battery

Solid polymer electrolytes (SPEs) offer a promising avenue for advancing the performance and safety of all-solid-state batteries. In this study, we investigated the effects of blending poly(ethylene oxide) (PEO) with amorphous poly(propylene glycol) (PPG) or poly(ethylene glycol-ran-propylene glycol) (PEG-PPG) to engineer SPEs with enhanced electrochemical properties. By blending PEO with PEG-PPG or PPG, we effectively lowered the crystallinity of PEO, facilitating the diffusion of lithium ions through the SPE and broadening its operational temperature range. This optimization strategy enhanced ionic conductivity and significantly reduced the interfacial resistance between the electrolyte and electrode, thus improving electrochemical stability. The solid-state lithium/lithium iron phosphate (LiFePO4 or LFP) with PEO blended with 7% PEG-PPG showed excellent charge/discharge cycling stability, with maximal discharge capacities of 165 mAh g−1 and 162 mAh g−1 at a current rate of 0.2 C at 60 and 125 °C, respectively. The PEG-PPG-based SPE outperformed the PPG polymer-based SPE in terms of better electrochemical performance and a wider temperature range due to its longer polymer chain. This combination offered improved ionic conductivity, interface stability, and electrolyte compatibility with electrodes, making it highly suitable for high-demand applications of lithium-ion batteries.

Operando Tracking of Transport Properties in Na3V2(PO4)2F3 and LiFePO4 Battery Electrodes by In-Plane Measurements

The development of batteries has become a major challenge and requires new operando techniques for tracking reaction kinetics in battery electrodes during operation. Taking Na3V2(PO4)2F3 and LiFePO4 as examples of positive electrode materials, the present work deals with the design of an operando technique to measure the ionic and electronic transport properties of battery electrodes during polarization. In the case of LiFePO4, large electronic resistance changes were revealed when crossing the solid-solution domains. Such resistance changes are consistent with thermodynamic models proposing the existence of a diffuse phase boundary between Li-poor and Li-rich domains, as a result of the non-linear variation of the chemical potential of the LFP particles, which in turn leads to restricted lithium diffusion. Concerning Na3V2(PO4)2F3, the important variations of electronic resistance measured were correlated with different phase changes and superstructures formed during the insertion-disinsertion of Na+ ions, as well as the polarization and entropy heat variations. These results are fully consistent with a substantial correlation of structural changes with transport properties and reaction kinetics, and thus, performances. More generally, this technique shows great promise as a tool to aid in designing battery electrodes with improved ionic and electronic percolations.

One-pot synthesis of transition metals-doped LiAl-LDHs to improve lithium adsorption performance and stability

Transition metal doping of Li/Al-LDHs can alter the interlayer spacing and surface charge of LDHs, thereby enhancing adsorption performance and stability. To investigate the rules and mechanisms governing the enhancement of stability and adsorption capacity of Li/Al-LDHs through transition metal element doping, several transition metal elements (Co, Zn, Mn, Zr, and Ni) were selected, and the five types of transition metal-doped Li/Al-LDHs and one undoped Li/Al-LDHs were synthesized by a one-pot method. Compared to the original Li/Al-LDHs, the Co-doped Li/Al-LDHs exhibited higher adsorption capacity, lower dissolution loss, and greater stability. Additionally, after Co doping, the lattice constant of Li/Al-LDHs decreases, effectively reducing the intercalation energy and increasing lithium diffusion efficiency. When used for lithium adsorption, Co-Li/Al-LDHs exhibited a Li+ capacity of 12.6 mg/g and reached saturation adsorption within 90 min. Notably, Co-Li/Al-LDHs achieved a high Li+ adsorption capacity (6.46 mg/g) in East Taigener salt-lake brine. After 10 cycles, the adsorption capacity did not show any significant change, and after 336 h adsorption-desorption cycles (200 rmp, oscillation), the total Al dissolution loss was only about 0.035 ‰, demonstrating that Co doping can enhance the interlayer binding force of Li/Al-LDHs, thereby reducing the decomposition of the layered structure in solution, lowering aluminum dissolution loss, and improving structural stability. The results show that doping with transition metals can reduce the Al dissolution rate of LDHs, and Co-Li/Al-LDHs can be used as an efficient adsorbent for lithium extraction from salt lake and have higher stability.

Fulgide Derivatives as Photo-Switchable Coatings for Cathodes of Lithium Ion Batteries - A DFT Study.

Photo-switchable coatings for lithium ion batteries (LIB) can offer the possibility to control the diffusion processes from the electrode materials to the electrolyte and thus, for example, reducing the energy loss in the fully charged state. Fulgide derivatives, as known photo-switches, are investigated concerning their use as coating for vanadium pentoxide, a potential cathode material for LIB. With the help of Density Functional Theory calculations, two fulgide derivatives are characterized with respect to their photophysics, their aggregation behaviour on the cathode material and the ability to form self-assembled monolayers (SAM). Furthermore, the two states of the photo-switchable coating are tested with respect to lithium diffusion from the cathode material, passing the SAM and entering the electrolyte. We found a difference for the energy barriers depending on the state of the photo-switch, preferring its closed form. This behaviour can be used to prevent the loss of charge in batteries of portable devices.

Laser-formed nanoporous graphite anodes for enhanced lithium-ion battery performance

Lithium-ion batteries are pivotal in modern energy storage, commonly utilizing graphite anodes for their high theoretical capacity and long cycle life. However, graphite anodes face inherent limitations, such as restricted lithium-ion storage capacity and slow diffusion rates. Enhancing the porosity of graphite and increasing d-spacing in expanded graphite anodes have been explored to improve lithium-ion diffusion and intercalation. Recent advancements suggest that nanoscale modifications, such as utilizing nano-graphite and graphene, can further enhance performance. Laser processing has emerged as a promising technique for synthesizing and modifying graphite and graphene-related materials, offering control over surface defects and microstructure. Here, we demonstrate an industrially compatible one-step laser processing method to transform a nano-graphite and graphene mixture into a nanoporous matrix, significantly improving lithium-ion battery performance. The laser-processed anodes demonstrated significantly enhanced specific capacities at all charge rates, with improved relative performance at higher charge rates. Additionally, long-term cycling at 1 C showed that laser-processed cells outperformed their non-processed counterparts, with specific capacities of 323 and 241 mAh/g, respectively.

Emergence of superconductivity and superionicity in the electride [formula omitted]La under extreme conditions

Superconducting electrides, a unique type of conventional superconductors, have recently attracted considerable attention. Inspired by the discovery of high critical temperature (Tc) in lanthanum hydrides and the feasibility of forming electrides in lithium-based compounds, we have conducted a systematic investigation the phase diagram and superconductivity of Li-La alloys under high pressure. Using the crystal structure prediction method and first-principles calculations, we uncovered three pressure-stabilized compounds with stoichiometries LiLa3, LiLa2 and Li6La. All three compounds exhibit metallic behavior with electrons transferred from Li to La atoms. Notably, Li6La emerges as a prototypical superconducting electride with Tc of 11.6 K at 350 GPa, which increases to 16.3 K as pressure decreases to 200 GPa. Electron–phonon analysis reveal that the enhancement of superconductivity mainly originates from the coupling between the increased interstitial quasiatoms (ISQs) and low-frequencies phonons. Additionally, akin to lanthanum hydrides, Li6La is predicted to enter a superionic phase characterized by high lithium diffusion coefficients under high pressure and temperature. Our findings indicate the coexistence of superconductivity and superionicity in the electride Li6La, which may prompt further experimental investigations.

Tailoring the Electronic Structure and Properties of Graphdiyne by Cyano Groups.

Two-dimensional (2D) materials, such as 2D carbon-based systems, have been recently the subject of intense studies, thanks to their optoelectronic properties and promising electronic performances. 2D carbon-based materials such as graphdiyne (GDY) represent an optimal platform for tuning the optoelectronic properties via precise chemical functionalization. Here, we report a synthetic strategy to precisely introduce cyano groups into the 2D GDY backbone in order to tune the electronic properties of GDY. Three kinds of cyano-modified GDY have been synthesized, namely, bearing one cyano group (CNGDY), two CN in meta (m-CNGDY), and two in para (p-CNGDY) positions. A variety of experimental data as well as first-principles calculations allowed us to elucidate the role of the cyano groups in tuning the structural and functional properties of GDYs. We found that an increase in the number of cyano groups reduces the interlayer spacing between GDY layers, increases the lithium adsorption amount, as well as impacts the lithium diffusion rate, while changes in meta- or para-position impact the energy band gap.

Chelated Metal-Organic Frameworks for Improved the Performance of High-Nickel Cathodes in Lithium-Ion Batteries.

Lithium-ion batteries have gained widespread use in various applications, including portable devices, electric vehicles, and energy storage systems. High Ni cathode, LiNixCoyMnzO2 (NCM, x≥0.8, x+y+z=1), have garnered significant attention owing to their high energy density. However, the limited Li-ion transfer rate and transition metal cross-talk to anode pose obstacles to further improvement of electrochemical performance. To tackle these challenges, metal-organic frameworks (MOFs) with chelating agents are employed as additive materials for electrode. MOFs with chelating agents offer three key attributes: (1) Effective mitigation of transition metal cross-talk to the anode, (2) Partial desolvation of Li+ ions through MOF pores, and (3) Immobilization of anions via metal sites in the MOF. Leveraging these advantages, the chelating MOF-modified NCM cathode demonstrates reduced charge transfer resistance, both in their pristine and cycled states. In addition, they exhibit significantly improved the Li-ion diffusion coefficients after 100 cycles. These findings underscore the potential of MOFs with chelating agents as promising additive materials for enhancing the performance of LIBs.