期刊
ACS APPLIED ENERGY MATERIALS
卷 5, 期 5, 页码 5513-5518出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.2c00665
关键词
n:p ratio; reference electrode; Si-dominant anode; NMCS32 cathode; electrode impedance
资金
- National Science Foundation INTERNship program
- DOE's Vehicle Technologies Office (VTO)
- VTO
The n:p ratio is crucial for lithium-ion cell design and performance. Higher n:p ratio leads to better reversibility, capacity retention, and lower impedance rise due to smaller volume changes in silicon particles during electrochemical cycling.
The negative to positive electrode capacity ratio (n:p) is crucial for lithium-ion cell design because it affects both energy density and long-term performance. In this study, the effect of the n:p ratio on electrochemical performance has been investigated for NMC532/Si cells containing a reference electrode. By monitoring individual electrode potentials, depths of lithiation/delithiation at the anode and cathode could be determined. The superior performance of the higher n:p cell, including greater reversibility, better capacity retention, and lower impedance rise, can be attributed to smaller volume changes in the silicon particles during electrochemical cycling.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据