基于膨胀力的自适应多级恒流快速充电与电池离子电池的板检测
Yudong Shen1, Xueyuan Wang1, Yuguang Li1
1School of Automotive Studies, Tongji University, Shanghai, 201804, China.
概括
本研究介绍了一种适应式多阶段恒流 (MCC) 充电方法,用于离子电池. 它使用膨胀力反来检测和防止涂层,将充电速度增加50%而不会损坏.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 电池技术 电池技术
背景情况:
- 多阶段恒流 (MCC) 充电是离子电池的标准,平衡充电时间和涂层.
- 传统的MCC依赖于固定充电地图,忽视实时板反和自我调节.
- 这种限制妨碍了最佳的充电性能和安全性.
研究的目的:
- 为离子电池开发一个自适应的MCC充电策略.
- 利用膨胀力反来检测和缓解充电期间的涂层.
- 为了提高充电速度而不会损害电池完整性.
主要方法:
- 提出了一个自适应的MCC充电方法,集成膨胀力反来检测涂层.
- 为了验证该方法,进行了实验和模拟.
- 在力导数 (dF/dSOC) 中确定了三个自调的值 (V1,V2,V3).
主要成果:
- 涂层的开始被检测到是一种异常的,加速扩张力的增加.
- 在检测到涂层时降低了充电率,导致力降低,表明涂层停止.
- 适应方法使充电速度增加了50%,而没有不可逆转的涂层.
结论:
- 拟议的自适应MCC充电方法有效地使用膨胀力反来自我调节充电率.
- 这种方法显著提高了充电速度,同时防止了有害的涂层.
- 该方法有望集成到智能电池管理系统中,以改善快速充电.
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