Satisfactory Electrochemical Performance Research Articles

Spinel-Structured, Multi-Component Transition Metal Oxide (Ni,Co,Mn)Fe2O4−x as Long-Life Lithium-Ion Battery Anode Material

Metal oxide anode materials are affected by severe volume expansion and cracking in the charging/discharging process, resulting in low capacity and poor cycle stability, which limits their application in lithium-ion batteries (LIBs). Herein, a new strategy is uncovered for a preparing spinel-structured, multi-component transition metal oxide, (Ni,Co,Mn)Fe2O4−x, with oxygen vacancies as an LIB anode material. The as-fabricated material presented excellent reversible capacity and cycling stability, delivering a discharge capacity of 1240.2 mAh g−1 at 100 mA g−1 for 200 cycles and then at 300 mA g−1 for 300 additional cycles. It presented extremely long cycle stability even at 2 A g−1, revealing 650.5 mAh g−1 after 1200 cycles. The good lithium storage capacity can be ascribed to the entropy stabilization effect, the multi-cation synergistic effect, abundant oxygen vacancies and the spinel structure. This study provides a new opportunity to fabricate and optimize conversion-type anodes for LIBs with satisfactory electrochemical performance.

Design of a new electrochemical aptasensor based on screen printed carbon electrode modified with gold nanoparticles for the detection of fumonisin B1 in maize flour

A new aptasensor for detecting fumonisin B1 (FB1) in the maize samples was developed based on DNA- aptamer recognition and electrochemical technique. A thiol-modified single-stranded DNA (ss-HSDNA) was immobilized on a screen printed carbon electrode (SPCE) electrodeposited by gold nanoparticles (AuNPs). The morphology and structure of SPCE and AuNPs/SPCE were evaluated via scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The SEM results demonstrated that the SPCE had a flat sheet-like structure, and the AuNPs were homogeneously electrodeposited on the SPCE. Cyclic voltammetry (CV) experiments in the [Fe(CN)6]− 3/− 4 solution were conducted to investigate each step of electrode modification as well as aptasensor performance. Aptamer-FB1 interaction prevented the electron transfer permitting the determination of FB1 in the range of 0.5–500 ng/mL with a low detection limit (0.14 ng/mL). The designed aptasensor was also shown high selectivity, acceptable repeatability and reproducibility, good long-term stability, and excellent recovery. Furthermore, there was a strong correlation between the findings achieved via the designed aptasensor and high performance liquid chromatography (HPLC). Therefore, a simple construction process and satisfactory electrochemical performance of the proposed aptasensor have a great potential for the detection of FB1 in maize samples.

Dual modification of Ti3C2Tx MXene hybridization and cut-off voltage adjustment for MoS2 to achieve stable sodium storage performance

The dual modification of MXene hybridization and cut-off voltage adjustment endows MoS2/Ti3C2Tx with enhanced reaction kinetics and satisfactory electrochemical performance.

Fabrication of porous polyimide as cathode for high performance lithium-ion battery.

Herein, we report the preparation of porous polyimide (PI) with a cost-effective synthesis process by polycondensation between melamine and dianhydride monomers. The prepared porous PI served as a cathode for lithium-ion batteries (LIBs), and delivers a high discharge platform of 2.1 V and satisfactory electrochemical performance. Thus, the porous PI cathode provides another choice for LIBs.

Unravelling the pseudocapacitive origin of graphene oxide-based aerogels by comparative insights.

We reveal the intrinsic pseudocapacitive center of graphene-oxide-based aerogels by investigating different modified graphene skeletons from various approaches. A high proportion of carbonyl groups in carbon networks is shown to optimize the construction of rational pseudocapacitive sites by triggering reversible proton-induced surface reactions, leading to satisfactory electrochemical performance.

Constructing hierarchical SnS2 hollow micron cages anchored on S-doped graphene as anodes for superior performance alkali-ion batteries

Two-dimensional layered metal sulfides have been regarded as worthwhile anodes for Lithium/Sodium-ion batteries (LIBs/SIBs) due to their extraordinary specific capacity and outstanding cyclic stability. Nevertheless, the sluggish reaction kinetics of alkali ions and pulverization in the process of discharging/ charging still restrict further development of layered metal sulfides. Therefore, reasonable structure design and surface optimization become efficacious ways to solve this issue. Herein, a hollow micron cage with a hierarchical structure composed of SnS2 nanosheets anchoring on S-doped reduced graphene oxide (H-SnS2@rGO) was prepared by a two-step hydrothermal method. The layered SnS2 nanosheets provide remarkable kinetic conditions for the rapidly diffusion of alkali ions. Moreover, the synergistic effect of hollow structure and rGO makes H-SnS2@rGO exhibit satisfactory electrochemical performance. Which displays a prominent rate capacity (874.1 mA h g−1 at 5 A g−1) in LIBs and an admirable specific capacity (613.3 mA h g−1 at 0.1 A g−1 after 100 cycles) in SIBs. This work opens up a new route for the use of two-dimensional layered sulfides as anode materials for new-type alkali-ion batteries.

Machine-Learning-Accelerated Development of Efficient Mixed Protonic-Electronic Conducting Oxides as the Air Electrodes for Protonic Ceramic Cells.

Currently, the development of high-performance protonic ceramic cells (PCCs) is limited by the scarcity of efficient mixed protonic-electronic conducting oxides that can act as air electrodes to satisfy the high protonic conductivity of electrolytes. Despite the extensive research efforts in the past decades, the development of mixed protonic-electronic conducting oxides still remains in a trial-and-error process, which is extremely time consuming and high cost. Herein, based on the data acquired from the published literature, the machine-learning (ML) method is introduced to accelerate the discovery of efficient mixed protonic-electronic conducting oxides. Accordingly, the hydrated proton concentration (HPC) of 3200 oxides is predicted to evaluate the proton conduction that is essential for enhancing the electrochemical performances of PCCs. Subsequently, feature importance for HPC is evaluated to establish a guideline for rapid and accurate design and development of high-efficiency mixed protonic-electronic conducting oxides. Thereafter, screened (La0.7 Ca0.3 )(Co0.8 Ni0.2 )O3 (LCCN7382) is prepared, and the experimental HPC adequately corresponds with the predicted results. Moreover, the PCC with LCCN7382 exhibits satisfactory electrochemical performances in electrolysis and fuel cell modes. In addition to the development of a promising air electrode for PCC, this study establishes a new avenue for ML-based development of mixed protonic-electronic conducting oxides.

Assisting Zn storage in layered vanadyl phosphate cathode by interactions with oligoaniline pillars for rechargeable aqueous zinc batteries

Aqueous zinc batteries are promising energy storage devices owing to the high safety and low cost. The layered VOPO4·2H2O is a desired cathode material. However, it has not achieved satisfactory electrochemical performance. Herein, we report an in-situ intercalation-polymerization method to prepare the oligoaniline intercalated VOPO4 (OANI-VOPO4). Mechanism studies show that the oligoaniline pillars in the layers interact with inserted Zn2+ and reduce the binding by the lattice. The electron delocalization of oligoaniline further buffers the local charge change upon Zn2+ insertion. These factors promote the Zn storage behavior of OANI-VOPO4. In a medium concentration bi-salt electrolyte to suppress water induced side reactions, the OANI-VOPO4 cathode achieves 200 mAh/g capacity at 0.5 A/g, superior to 135 mAh/g obtained with VOPO4·2H2O. OANI-VOPO4 also realizes 90 % capacity retention after 2000 cycles, together with well-preserved charge/discharge voltage curves. The multi-electron redox reactions among VV/VIV/VIII are identified.

Facilitating uniform lithium deposition via nanoconfinement of free amide molecules in solid electrolyte complexion for lithium metal batteries

As a facile method to facilitate the uniform lithium deposition on the lithium metal anode, a unique solid electrolyte complexion consisted of polyethylene oxide, UiO-66-NH2, and deep eutectic solvents (PEMD) with nanoconfinement significantly improves the lithium metal cycling stability. Specifically, the free amide molecules of deep eutectic solvents are nanoconfined by UiO-66-NH2 in the polyethylene oxide (PEO) matrix, and an excellent symmetrical electrochemical cycling performance more than 3600 h is achieved, extended by ∼10 times comparing to the reference. Furthermore, the Li || PEMD || LiFePO4 cell not only exhibits satisfactory electrochemical performance at 60 °C inherited from PEO, but also presents unexpected capacity reversibility, cycling stability, and enhanced rate capability at low temperatures down to 10 °C. The design of the solid electrolyte complexion with nanoconfinement opens an innovative avenue to the practical implementation of the PEO based lithium metal batteries.

Ca/Mg dual-doping P2-type Na0.67Ni0.17Co0.17Mn0.66O2 cathode material for sodium ion batteries

Ternary layered oxide Na0.67Ni0.17Co0.17Mn0.66O2 with P2 structure has emerged as alternative to the lithium-ion batteries. The main cause of the induced circulation fluctuation is the P2-O2 change that exists during the charging and discharging process. In this study, a Ca/Mg co-doped strategy has been employed to solve this problem and P2-type Na0.64Ca0.03(Ni0.17Co0.17Mn0.66)0.9Mg0.1O2 with satisfactory electrochemical performance has been successfully prepared. XRD results confirm that no impure phases formed after Ca/Mg co-substitution. Particularly, the co-doped Na0.64Ca0.03(Ni0.17Co0.17Mn0.66)0.9Mg0.1O2 shows an impressive initial discharge capacity of 158 mAh g−1, and the capacity after 100 cycles reaches 140 mAh g−1, which has been greatly improved than the raw Na0.67Ni0.17Co0.17Mn0.66O2. Small amount of Ca expands the lattice spacing and improves the specific capacity. The presence of inert Mg2+ inhibits P2-O2 transition, thus enhancing the structure stability. The study shows that the cycling stability and the rate capability of Na0.67Ni0.17Co0.17Mn0.66O2 can be improved by Ca/Mg co-doping.

Plasma-induced ε-MnO2 based aqueous zinc-ion batteries and their dissolution-deposition mechanism

• A novel plasma induced route was developed to prepare oxygen vacancies-rich ε-MnO 2- x . • Oxygen vacancies can effectively modify the electrochemical performance of ε-MnO 2- x . • A new dissolution/deposition mechanism for Zn//ε-MnO 2- x battery was proposed. MnO 2 has attracted great interest in working as the cathode of zinc ion batteries. However, the development of high-capacity, high-energy-density, and durable manganese-based cathodes with an easy synthesis strategy and proper energy storage mechanism remains an ongoing challenge. Herein, a facile plasma-induced strategy was demonstrated to introduce oxygen vacancies into the ε-MnO 2 , and the obtained oxygen vacancies-rich ε-MnO 2 nanosheets (ε-MnO 2– x ) show satisfactory electrochemical performances. Furthermore, an appropriate energy storage mechanism for dissolution/deposition was proposed. Thanks to a synergistic effect of the oxygen vacancies in ε-MnO 2 nanosheets and the exposed free-standing collector for Mn 2+ dissolution/deposition, the ε-MnO 2– x nanosheets electrode delivers a remarkable capacity (337 mAh g –1 at 0.1 A g –1 ) and exhibits an ultrahigh energy density of 462 Wh kg –1 (based on the weights of the cathode active material). Furthermore, impressive durability with 85.9% capacity retention after 1000 cycles was obtained. The superior electrochemical performance makes the plasma-induced strategy promising for designing advanced metal oxide electrode materials for high-performance aqueous zinc ion batteries.

Graphene wrapped TiO2@MoSe2 nano-microspheres with sandwich structure for high-performance sodium-ion hybrid capacitor

Sodium-ion hybrid capacitors (SIHCs) have received extensive attention and research due to their combined advantages of high power performance and high energy density. However, the lack of high-performance anode materials has been a challenge for sodium storage devices. Herein, a heteroatom co-doped hollow spherical TiO2@MoSe2/reduced graphene oxide (RGO) with pea pods structure is designed and synthesized. This unique composite is made of TiO2 as the stable framework, MoSe2 sheet as the main active materials, and RGO conductive network as the protective cover. The sandwich structure provides stable and ordered transport channels for electrons and Na+, and greatly increases the number of active sites. As a result, TiO2@MoSe2/RGO exhibits satisfactory electrochemical performance. At a high current density of 2 A g-1, TiO2@MoSe2/RGO still maintains a capacity of 106 mAh g-1 after 1000 cycles. The hybrid device possesses an energy density of 135 Wh kg−1 at power density of 1667 W kg−1, demonstrating the design concept of heterogeneous composite provides a new route for the development of electrode materials in sodium-ion storage devices.

Benefits of Tuned Binder Distribution in Multi-Layered Thick NMC811 Cathodes

Maximizing the electrode thickness is an inevitable target to reach when improving the energy density of Li-ion batteries [1,2]. Unfortunately, the fabrication of electrodes of several hundreds of micrometer thickness is often accompanied by detrimental side-effects. A critical process step in thick electrode production is the drying of the coated layer. During the evaporation of the solvent, light components of the slurry such as binder and carbon black can be dragged to the top of the coating [3,4]. The lack of liquid linkage throughout the layer leads to binder particles being evenly spread across the coating after the drying process is concluded. Inhomogeneous distribution of binder can not only cause delamination, but also negatively influences the Li-ion transport pathways through the electrode. To ensure ideal mechanical stability and satisfactory electrochemical performance, binder migration needs to be suppressed effectively.Multi-layering has proven itself as a technique within aqueous processing to overcome the limitations arising for thick electrodes. Subsequent coating of layers offers opportunities to establish selective material compositions at specific regions within the electrode (Figure 1a). This novel coating method can be considered a steppingstone to further optimize high loading electrodes. We have previously demonstrated that by multi-layering an increase of 40% in adhesion can be achieved compared to single-layer electrodes. Moreover, the assembled cells show superior performances at rate capability tests. Especially for low current densities (0.2C) an increase of up to 20% in specific discharge capacity was reached through multi-layering (Figure 1b) [5].Within aqueous electrode fabrication, the use of sodium carboxy-methyl cellulose (CMC) as binder material is common, due to its role as a thickening agent of the slurry and solubility in water. However, due to its brittleness, the usage of CMC requires additional binders to maintain flexibility of the coating. The ratio of active and inactive materials within the cell is strongly correlated to its capacity and the addition of these binders ultimately results in a decreased energy density of the cell. Besides keeping the particles together, the main purpose of the binder is to guarantee good adhesion to the substrate. Therefore, a high concentration is not necessarily needed at the top of the coating and the overall amount of binder material should be kept at a minimum.Bi-layered cathodes consisting of Ni-rich lithium nickel manganese cobalt oxides (NMC811) as active material were fabricated. The concentration of poly(methyl)acrylate (PMA) binder was changed in the top layer and its effect on structural properties and electrochemical performance was investigated. Water-based processed cathodes with high loadings of more than 8 mAhcm-2 were tested in full cell configurations.Reduction of the binder content leads to an increase in specific discharge capacity of up to 40% compared to single-layered and 25% to unmodified multi-layered electrodes at a C-rate of 1C (Figure 1b). Acknowledgements This work was financially supported by the Austrian Federal Ministry for Climate Action, Environment, Energy, Mobility, Innovation and Technology (bmk).[1] Z. Du, D.L.W. Iii, C.D.S. Kalnaus, J. Li, Understanding limiting factors in thick electrode performance as applied to high energy density Li-ion batteries, J. Appl. Electrochem. 47 (2017) 405–415. https://doi.org/10.1007/s10800-017-1047-4.[2] Y. Kuang, C. Chen, D. Kirsch, L. Hu, Thick Electrode Batteries: Principles, Opportunities, and Challenges, Adv. Energy Mater. 9 (2019). https://doi.org/10.1002/aenm.201901457.[3] F. Font, B. Protas, G. Richardson, J.M. Foster, Binder migration during drying of lithium-ion battery electrodes: Modelling and comparison to experiment, J. Power Sources. 393 (2018) 177–185. https://doi.org/10.1016/j.jpowsour.2018.04.097.[4] M. Müller, L. Pfaffmann, S. Jaiser, M. Baunach, V. Trouillet, F. Scheiba, P. Scharfer, W. Schabel, W. Bauer, Investigation of binder distribution in graphite anodes for lithium-ion batteries, J. Power Sources. 340 (2017) 1–5. https://doi.org/10.1016/j.jpowsour.2016.11.051.[5] L. Neidhart, K. Fröhlich, N. Eshraghi, D. Cupid, F. Winter, M. Jahn, Aqueous Manufacturing of Defect-Free Thick Multi-Layer NMC811 Electrodes, Nanomaterials. 12 (2022) 1–15. https://doi.org/10.3390/nano12030317. Figure 1

An Ultrathin, Flexible Solid Electrolyte with High Ionic Conductivity Enhanced by a Mutual Promotion Mechanism.

The pursuit of strong endurance and nonflammable performances has promoted demand for solid-state batteries (SSBs). Meanwhile, the reduction of electrolytes' thickness is the key to improving battery performance. However, a large-scale feasible method to fabricate an ultrathin solid electrolyte exhibiting high ionic conductivities is still a challenge. Here, we show a large-scale feasible method to prepare a succinonitrile/polyacrylonitrile(SN/PAN)-coated Li6.4La3Zr1.4Ta0.6O12 (LLZTO) with flexibility and high ionic conductivity by tape-casting. The unique dual polymer-coated garnet electrolytes exhibit structural stability through mutual promotion, constructing soft interparticle contact that provides fast lithium-ion transfer channels. In essence, the mutual promotion mechanism is that SN can improve the Li+ conductivity of PAN, while PAN can protect SN from aggregation. Therefore, the flexible SN/PAN-coated LLZTO provides high structural stability and satisfactory electrochemical performance, contributing to a high ionic conductivity of 4 × 10-4 S cm-1 at room temperature (RT). In this way, a long lifespan of over 500 cycles and a high discharge capacity (163 mAh g-1) are achieved based on LiFePO4 (LFP) cathodes at 0.2 C.

Fabrication of binder-free hierarchical three dimensional NiO nanoflakes@carbon nanofibers for superior symmetric supercapacitor application

Metal oxide nanosheets and nanoflakes are potentially active materials for the fabrication of supercapacitors electrode development owing to their large three dimensional (3D) surface area and high electrochemical activity. In this work, hierarchical three dimensional nanoflakes (H3DN) of nickel oxide (NiO) were designed and successfully grown on carbon microfibers (CMF) as a binder free electrode material i.e. H3DN-NiO@CMF for supercapacitor applications via a facile and simple hydrothermal method. The reaction parameters were successfully optimized to obtain efficient growth, porous structure, and uniform morphology. The resulting optimized electrodes were characterized using various microscopic and spectroscopic techniques and further electrochemical supercapacitive performance were analyzed in half and full cell assemblies. The porous structure of the carbon microfiber could be effectively inherited and used as a binder free electrode, the three-electrode system exhibited satisfactory electrochemical performance with a high areal capacitance of 2322.6 mF/cm2 and an excellent cyclic stability with retention up to 87.40 %. In two-electrode symmetric supercapacitor system comprising H3DN-NiO@CMF electrodes exhibited an excellent cyclic stability up to 79.1 % after 7000 cycles and the highest energy density of 154.1 mWh kg−1 at a power density of 2801.8 mWkg−1. The outstanding performance could be attributed to the 3D porous structure, nanoflake morphology, and good conductivity of the H3DN-NiO@CMF electrodes, which could ensure a rapid transport of the ions and electrons. The obtained results demonstrate that H3DN-NiO@CMF electrodes are potential candidates for energy storage applications.

Amino-functionalized multilayer Ti3C2Tx enabled electrochemical sensor for simultaneous determination of Cd2+ and Pb2+ in food samples

Herein, amino-functionalized multilayer titanium carbide (NH2-Ti3C2Tx) was developed and applied to electrochemical sensor for simultaneous determination of Cd2+ and Pb2+. The NH2-Ti3C2Tx was prepared by grafting (3-amino-propyl) triethylsilane (APTES) onto the surface of Ti3C2Tx. Its morphology, crystal structure and chemical composition were characterized by field emission scanning electron microscope (FESEM), X-ray diffractometer (XRD), and X-ray photoelectron spectroscopy (XPS). Benefiting from the unique multilayer structure, large active surface area, strong adsorption capacity and excellent electrical conductivity, the functionalized NH2-Ti3C2Tx presented satisfactory electrochemical performances for Cd2+ and Pb2+ determination, and the detection limits were 0.41 μg L−1 and 0.31 μg L−1, respectively. Based on chemical coordination and electrochemical accumulation, the suggested mechanism for Cd2+ and Pb2+ determination was also deeply clarified. Besides, it was successfully applied to simultaneous determination of Cd2+ and Pb2+ in food samples including rice, wheat, sorghum and corn, demonstrating a good practicability.

Constructing a Hierarchical LiMn0.8Fe0.2PO4/C Cathode via Comodification of Li3PO4 and Graphite for High-Performance Lithium-Ion Batteries

The construction of an ionic/electronic conducting network is crucial for achieving satisfactory electrochemical performances of LiMnPO4 materials because of their low conductivity and the dissolution of Mn2+. Herein, a hierarchical LiMn0.8Fe0.2PO4/C composite comodified with Li3PO4 and graphite is synthesized via a facile solid-state method combined with freeze drying. The ionic conductor Li3PO4 in situ generated can improve the lithium-ion conductivity and inhibit the reaction of Mn ions with electrolytes. An electronic conducting network is formed through the secondary coating graphite and the residual carbon in situ created within the grain boundaries of LiMnPO4 nanocrystallites. Taking advantage of the synergy effect, the Li3PO4 and graphite comodified LiMn0.8Fe0.2PO4/C material yields an initial discharge capacity of 150 mA h g–1at 0.1 C, a high-rate reversible capacity of 136 mA h g–1at 5 C, and a long-term capacity retention of 91.6% after 500 cycles at 2 C. The design strategy provides a significant inspiration for the development of high-performance cathode materials with practical application.

Facile Large-Scale Synthesis of Lightweight Hierarchical Porous Carbon with Satisfactory Electrochemical Performance for Supercapacitors

Facile Large-Scale Synthesis of Lightweight Hierarchical Porous Carbon with Satisfactory Electrochemical Performance for Supercapacitors

Controllable synthesis of hierarchical core-shell NiS2/CoS2@N,S-C nanospheres for lithium storage

Transition metal sulfides (TMSs) present high theoretical capacity as anode materials for Lithium-ion batteries, and structural design of TMSs is proved to be an effective strategy to acquire satisfactory electrochemical performances. Herein, the hierarchical NiS 2 /CoS 2 @N,S-C nanospheres consisting of NiS 2 /CoS 2 matrixes and N,S-codoped carbon outer layer (N,S-C) are fabricated. Additionally, NiS 2 /CoS 2 @N,S-C nanospheres with different core-shell structures appear in this study when the amount of nickle and cobalt is precisely controlled, which further confirms the different abilities of nickle and cobalt in tailoring and modulating structure. In particular, the NiS 2 /CoS 2 @N,S-C(Ni:Co=1:2) with yolk-shell property presents sufficient internal void space, which is conductive to the transport of Li + and electron. Moreover, the protective N,S-codoped carbon layer and the porous sheet arrays provide the enhanced structural stability and increased active sites. Benefitting from the unique structure, the NiS 2 /CoS 2 @N,S-C(Ni:Co=1:2) anode with binary metal sulfide composition presents good cycling performance (795 mAh g −1 at 0.2 A g −1 after 100 cycles) and rate capability (469 mAh g −1 at 5 A g −1 ). This study provides a reference for the design and preparation of novel TMSs-based materials with different morphologies in the field of energy storage. • NiS 2 /CoS 2 nanosphere encapsulated in the N,S-codoped carbon layer to synthesize the hierarchical NiS 2 /CoS 2 @N,S-C. • The regulation of core-shell structure of NiS 2 /CoS 2 nanospheres by changing the molar ratio of Ni/Co. • The N,S-codoped carbon layer improves the structural stability and conductivity of the final composites. • The NiS 2 /CoS 2 @N,S-C(Ni:Co=1:2) delivers the improved lithium storage performance than other vulcanized composites.

Li-Compound Anodes: A Classification for High-Performance Li-Ion Battery Anodes.

Four main anode types are generally considered as typical anodes for Li-ion batteries (LIBs): Li-metal, carbon-based, alloy-based, and oxide-based anodes. Although they exhibit satisfactory electrochemical performance as LIB anodes, they cannot simultaneously satisfy all key requirements for LIB anodes: high reversible capacity, high initial Coulombic efficiency (ICE), long cycle life, fast rate capability, structural stability, and no safety concerns. Here, we suggest Li-compound anodes as a promising class of high-performance LIB anodes. Three binary (LiSn, Li2Sb, and LiBi) and three ternary (Li2ZnSb, Li5GeP3, and Li5SnP3) Li compounds were introduced as Li-compound anodes. LiSn and Li5SnP3 were selected and further modified into their nanocomposites by solid-state synthetic routes using carbon sources for high-performance LIB anodes. The Li-compound nanocomposite anodes exhibited excellent performance and simultaneously fulfilled all the key requirements for high-performance LIB anodes. Therefore, Li-compound anodes are expected to be a promising and innovative category of high-performance LIB anodes.