亥姆霍兹线圈磁场对锂离子电池性能的影响  

Influence of Helmholtz coil magnetic field on the performance of Li-ion battery

作　　者：阮观强 郁长青 胡星 华菁 RUAN Guan-qiang;YU Chang-qing;HU Xing;HUA Jing(School of Mechanical Engineering,Shanghai Dianji University,Shanghai 201306,China)

机构地区：[1]上海电机学院机械学院,上海201306

出　　处：《电池》2021年第5期474-477,共4页Battery Bimonthly

基　　金：上海市2021年度“科技创新行动计划”项目(21DZ2304600)。

摘　　要：将锂离子电池置于不同磁感应强度(3.95 mT、19.75 mT和39.50 mT)的亥姆霍兹线圈磁场中进行充放电实验,研究磁场对充放电性能的影响。电池的充放电容量随着磁感应强度的增加而增加,在1/3 C倍率下,当磁感应强度增加至3.95 mT、19.75 mT和39.50 mT时,与不放置在磁场中相比,放电容量分别增加了2.03%、8.13%和17.48%,且磁感应强度与充放电容量近似呈线性关系。随着磁感应强度的增加,电池的充放电能量增大,放电时的端电压提高。Li-ion battery was placed in the Helmholtz coil magnetic field with different magnetic induction intensities(3.95 mT,19.75 mT and 39.50 mT)for charge-discharge experiments to study the influence of magnetic field on the performance of chargedischarge.The charge and discharge capacity of the battery increased with the growth of the magnetic induction intensity.When the magnetic induction intensity increased to 3.95 mT,19.75 mT and 39.50 mT,the discharge capacity at the rate of 1/3 C was increased by 2.03%,8.13%and 17.48%,respectively.Compared with not being placed in a magnetic field,the magnetic induction intensity was approximately linear with the charge and discharge capacity.With the growth of the magnetic induction intensity,the charge and discharge energy of the battery increased as well as the terminal voltage during discharge.

关 键 词：锂离子电池 亥姆霍兹线圈磁场 充放电性能 电池容量 

分 类 号：TM912.9[电气工程—电力电子与电力传动]