提升SiO基材料首次库仑效率的研究进展  

Research progress in improving initial Coulombic efficiency of SiO-based material

作　　者：黄青 索艳格[2] 石先兴 崔王君 HUANG Qing;SUO Yan-ge;SHI Xian-xing;CUI Wang-jun(Hubei Key Laboratory of Purification and Application of Plant Anticancer Active Ingredients,School of Chemistry and Life Sciences,Hubei University of Education,Wuhan,Hubei 430205,China;Department of Energy and Environment Engineering,Zhejiang University of Science&Technology,Hangzhou,Zhejiang 310023,China;Jiangsu Sieyuan Energy Technology Co.,Ltd.,Shanghai 201100,China)

机构地区：[1]湖北第二师范学院化学与生命科学学院,植物抗癌活性物质提纯与应用湖北省重点实验室,湖北武汉430205 [2]浙江科技学院能源与环境系统工程系,浙江杭州310023 [3]江苏思源电池技术有限公司,上海201100

出　　处：《电池》2022年第4期462-466,共5页Battery Bimonthly

基　　金：国家自然科学基金(21805244)。

摘　　要：针对氧化硅(SiO)负极首次库仑效率低的问题,梳理近年来对SiO材料补锂技术的研究,包括超薄锂带压延法、固相预锂法、化学液相预锂法、稳定锂金属粉末(SLMP)预锂法、锂合金热还原法和镁热还原法等。分析不同补锂技术的原理,对比各自的优势及不足,认为锂合金热还原法和镁热还原法可提升SiO的首次库仑效率,具有可精准控制和稳定性高的优点。这两种方法对环境要求相对较低,适合大规模生产,有望成为未来主要的补锂技术,可推动SiO在高比能量锂离子电池中的应用。The research progress in pre-lithiation technology aimed at the low initial Coulombic efficiency of silicon mono-oxide(SiO)in recent years were investigated,including ultra-thin lithium strip calendering method,solid-phase pre-lithiation method,chemical liquid-phase pre-lithiation method,stabilized lithium metal powder(SLMP)pre-lithiation method,lithium alloy thermal reduction method and magnesium thermal reduction method,etc.The principles of different pre-lithiation technologies were analyzed,the advantages and disadvantages were compared,it was considered that lithium alloy thermal reduction method and magnesium thermal reduction method could improve the initial Coulombic efficiency for SiO,both took the advantages of accurate control and high stability.These two methods had relatively low environmental requirements,thus they were suitable for large-scale production,were expected to become the main pre-lithiation technology in the future,so as to promote the application of SiO in high specific energy Li-ion battery.

关 键 词：提升 氧化硅(SiO) 锂离子电池 库仑效率 

分 类 号：TM912.9[电气工程—电力电子与电力传动]