• 中文
    • English
  • English 
    • 中文
    • English
  • Login
View Item 
  •   DSpace Home
  • 能源学院
  • 能源院-学位论文
  • View Item
  •   DSpace Home
  • 能源学院
  • 能源院-学位论文
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

锂离子电池硅负极水性粘结剂的制备和电化学性能研究
Preparing of Aqueous Binders of Si Anode for Lithium Ion Battery and their Electrochemical Performances

Thumbnail
Full Text
锂离子电池硅负极水性粘结剂的制备和电化学性能研究.pdf (482.7Kb)
Date
2018-04-10
Author
巫展宇
Collections
  • 能源院-学位论文 [141]
Show full item record
Abstract
硅在众多锂离子电池负极材料中具有最高的理论比容量、较低的嵌脱锂电位和丰富的自然储量,有望在新一代高比能量锂离子电池中得到商业化应用。然而硅在充放电过程的较大体积变化会严重影响电极循环稳定性。本论文通过改性提升粘结剂机械强度以及开发新型粘结剂,缓解其体积效应,从而提高硅负极循环性能。论文研究的主要结果如下: (1)通过海藻酸钠与金属离子的配位交联反应制备出一系列复合粘结剂,并将这些粘结剂首次用于锂离子电池硅负极。其中使用Al3+、Ba2+离子与海藻酸钠复合获得的粘结剂表现出较高的机械强度,使用这两种粘结剂的电极在420mAg-1电流密度下经300次循环后保持的可逆容量约为2100mAhg-1;...
 
Si is a promising anode material for next-generation high energy density lithium-ion batteries due to its high theoretical capacity, relatively low Li+ insert potential and nature abundance. However, Si anode has unstable cycle performance because of the huge volume change during charge/discharge processes. In this study, we have tried to improve the electrochemical properties of Si anode by prepa...
 
URI
https://dspace.xmu.edu.cn/handle/2288/169427

copyright © 2002-2016  Duraspace  Theme by @mire  厦门大学图书馆  
About | Policies
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

copyright © 2002-2016  Duraspace  Theme by @mire  厦门大学图书馆  
About | Policies