过渡金属硫化物Co9S8的制备及电化学性能研究进展
Progress in the preparation and electrochemical properties of transition metal sulfide Co9S8
李莹莹 1刘安 1姜乐妍 1李晖 1陈春钰 1居殿春1
作者信息
- 1. 江苏科技大学冶金工程学院,江苏 张家港 215600
- 折叠
摘要
过渡金属硫化物Co9S8由于具有比电容高、倍率性能好、循环寿命长、生产成本较低等特点,是一类极有潜在应用前景的石墨替代储能材料.但Co9S8存在充放电过程中体积膨胀大和导电性差等问题,导致充放电过程中材料结构易破坏,容量衰减快,还不能完全满足实际市场需求.本文基于Co9S8不同类型复合材料在各领域的最新研究,综述了Co9S8材料在实际应用中通过结构设计(形貌和颗粒大小调控)、多组分掺杂以及表面包覆等策略克服该材料存在的缺陷,通过对现有研究的归纳与总结,简述针对过渡金属硫化物Co9S8的主要改性手段,并对其今后的研究重点提出可行性建议.
Abstract
Transition metal sulfide Co9S8 is a highly promising alternative energy storage material for graphite due to its high capacitance,good rate performance,long cycle life and low production cost.However,Co9S8 has problems such as large volume expansion and poor conductivity during the charging and discharging process,which leads to easy damage to the material structure and fast capacity decay during the charging and discharging process,and cannot fully meet the actual market demand.According to the latest research on different types of Co9S8 composite materials in various fields,this article reviewed the practical applications of Co9S8 materials.Through the induction and summary of existing research,the main modification methods for transition metal sulfide Co9S8 were briefly described,and the feasible suggestions were put forward for its future research focus.
关键词
过渡金属硫化物/结构改性/元素掺杂/电化学性能Key words
transition metal sulfides/structural modification/element doping/electrochemical performance引用本文复制引用
基金项目
江苏省研究生科研与实践创新计划(KYCX23_3872)
江苏省自然科学基金(BK20210887)
江苏省双创计划(ISSCB20210984)
江苏省高校自然科学基金(21KJB450003)
出版年
2024
国家科技期刊平台
NSTL
万方数据