摘要
用线性扫描伏安(LSV)和交流阻抗谱研究己二腈(ADN)用作电解液添加剂的电化学行为,用X射线能谱(EDS)对电池正负极表面进行元素分析,考察己二腈作为电解液添加剂对以钴酸锂为正极的4.4 V锂离子电池性能的影响。含0.5%己二腈电解液能在正极表面形成腈键参与的吸附结构,并使4.4 V电池的高温存储厚度膨胀率从86.6%下降到13.1%。
The electrochemical behaviors of adiponitrile（ ADN） as additive in electrolyte were studied by linear sweep voltammetry（ LSV） AC impedance,the elements on surfaces of cathode anode were analyzed by energy dispersive X-ray spectroscop（ EDS）and the effect of ADN as additive in electrolyte on performance for 4. 4 V Li Co O2 cathode Li-ion battery was investigated. Electrolyte with 0. 5% ADN could form adsorption structure with nitrile bond on surface of cathode and reduce the swelling rate of 4. 4 V battery stored at high temperature from 86. 6% to 13. 1%.
出处
《电池》
CAS
CSCD
北大核心
2016年第3期137-139,共3页
Battery Bimonthly
基金
广东省科技计划项目(2014B010123002)
