Scholarlink

<p>To promote the application of lithium-ion batteries, optimizing the charging speed of lithium-ion batteries is essential to enhance user convenience. This work introduces a five-stage constant current charging method based on Lamb waves and investigates underlying mechanisms. A model for the numerical simulation of the five-stage constant current charging method using Lamb waves is developed, and the results of simulation calculations based on this model are compared with experimental results. The results demonstrate that Lamb waves reduce the lithium-ion concentration gradient, inducing a more uniform electrolyte salt concentration and a lower battery polarization voltage. Subsequent experiments are conducted using the conventional five-stage constant current charging method and the Lamb waves five-stage constant current charging method. The measurements with a battery tester reveal that the Lamb waves five-stage constant current charging method reduces charging time by 8.8% and increases capacity by 4.6% compared to the conventional five-stage constant current charging method, which is reproduced by the numerical simulations.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Lamb waves–based numerical simulation and experimental verification of five-stage constant current fast charging

  • 期刊论文

  • 发表日期：

    2025年4月30日

查看全文
  • Yang Wang,
  • Tong Wang,
  • Zichen Wang,
  • Zhaodong Yang,
  • Zhijie Zhang,
  • Wei Liang

摘要

To promote the application of lithium-ion batteries, optimizing the charging speed of lithium-ion batteries is essential to enhance user convenience. This work introduces a five-stage constant current charging method based on Lamb waves and investigates underlying mechanisms. A model for the numerical simulation of the five-stage constant current charging method using Lamb waves is developed, and the results of simulation calculations based on this model are compared with experimental results. The results demonstrate that Lamb waves reduce the lithium-ion concentration gradient, inducing a more uniform electrolyte salt concentration and a lower battery polarization voltage. Subsequent experiments are conducted using the conventional five-stage constant current charging method and the Lamb waves five-stage constant current charging method. The measurements with a battery tester reveal that the Lamb waves five-stage constant current charging method reduces charging time by 8.8% and increases capacity by 4.6% compared to the conventional five-stage constant current charging method, which is reproduced by the numerical simulations.