These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Preparation and Performance Investigation of Carbon-Coated Li1.2Mn0.2Ti0.6O2/C Cathode Materials.
    Author: Zhou Y, Xu Y, Song J, Tan Q.
    Journal: ACS Appl Mater Interfaces; 2024 Oct 02; 16(39):52539-52549. PubMed ID: 39358897.
    Abstract:
    Mn-based cation disordered rock-salt (DRX) cathode materials exhibit promising application prospects due to their cost-effectiveness and high specific capacity. However, the synthesis methods commonly employed for these materials rely on the solid-state reaction method and mechanochemistry method, primarily attributed to the influence of low-valence states of Mn. Currently, sol-gel approaches for preparing Mn-based DRX cathode materials are limited to systems involving Mn3+. Furthermore, there is a paucity of research regarding the modification of Mn-based DRX. To address this concern, the submicrometer-sized carbon-coated Li1.2Mn0.2Ti0.6O2/C materials were synthesized via a one-step sintering process using the sol-gel method with sucrose as the carbon source, resulting in smaller particle sizes compared to those prepared by the solid-state reaction at the same temperature. When employed as a cathode material for lithium batteries, samples prepared with 10 wt % sucrose exhibited exceptional cycling stability by delivering an initial discharge specific capacity of 119.6 mA h g-1 (at a current density of 20 mA g-1). After 20 charge-discharge cycles, a reversible specific capacity of 91.0 mA h g-1 was achieved, with a capacity retention rate of 76.1%. This approach provides distinctive insights and strategies for the preparation and modification of manganese-titanium-based disordered rock-salt cathode materials.
    [Abstract] [Full Text] [Related] [New Search]