Abstract
Commercial LiCoO 2 has been modified with MnSiO 4 as a novel coating material. The structures, morphologies, overcharge behaviors and thermal stabilities of the pristine and MnSiO 4-coated LiCoO 2 materials were studied. The MnSiO 4-coated LiCoO 2 had initial discharge specific capacities of 181.1 and 232.2 mAh g −1 within the potential ranges 2.75–4.5 and 2.75–4.7 V (vs. Li +/Li), respectively. It was found that the overcharge tolerance of the coated cathode was significantly better than that of the pristine LiCoO 2 under the same conditions – the discharge specific capacities of the coated cathode at upper charge cutoff voltages of 4.5 and 4.7 V were as high as 168.7 and 154.3 mAh g −1, respectively, after 50 cycles. Moreover, DSC showed that the coated LiCoO 2 had a higher thermal stability than the pristine LiCoO 2.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
