Page 75 - 《应用声学》2021年第6期

第 40 卷 第 6 期 Vol. 40, No. 6
2021 年 11 月 Journal of Applied Acoustics November, 2021

⋄ 研究报告 ⋄

兰姆波锂电池极化电压优化实验 ∗

李志鹏 梁 威 †

(上海工程技术大学机械与汽车工程学院 上海 201620)

摘要：为了降低极化对电池的影响，应用兰姆波技术对锂电池进行优化极化电压的实验。结合二阶电路模型，
计算锂电池的极化电压，分析极化电压随各影响因素的变化关系。实验结果表明：当兰姆波的激发频率一定
时，极化电压优化幅值随加在压电陶瓷两端的激发电压的增大而增大，呈线性变化；当兰姆波的激发电压保持
不变时，极化电压优化幅值与加在压电陶瓷两端的激发频率不呈线性关系，而是在某一共振激发频率内达到
最优。
关键词：兰姆波；极化电压；锂电池；二阶段路；控制变量
中图法分类号: TN385; TB552 文献标识码: A 文章编号: 1000-310X(2021)06-0871-07
DOI: 10.11684/j.issn.1000-310X.2021.06.009

Experimental investigations on polarization voltage optimization of
lithium battery excited by Lamb waves

LI Zhipeng LIANG Wei

(School of Mechanical and Automotive Engineering, Shanghai University of Engineering and Technology,
Shanghai 201620, China)

Abstract: In order to reduce the influence of polarization on the battery, Lamb wave technology was used
to optimize the polarization voltage of lithium battery. Combined with the second-order circuit model, the
polarization voltage of lithium battery is calculated, and the relationship between the polarization voltage and
the influencing factors is analyzed. The experimental results show that: when the excitation frequency of
Lamb wave is constant, the optimized amplitude of polarization voltage increases linearly with the increase of
excitation voltage at both ends of single-phase transducer (SPT); when the excitation voltage of Lamb wave
remains unchanged, the optimized amplitude of polarization voltage is not linear, but reaches the optimal value
in a common excitation frequency.
Keywords: Lamb wave; Polarization voltage; Lithium battery; Orthogonal experiment method; Control vari-
able

2021-01-04 收稿; 2021-04-01 定稿
国家自然科学基金资助项目 (51505274)
∗
作者简介: 李志鹏 (1995– ), 男, 山东临沂人, 硕士研究生, 研究方向: 锂电池快速充电应用。
† 通信作者 E-mail: Wei-Liang222@126.com