• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 56th Meeting of the Society for Machinery Failure Prevention Technology, Apr 15-19, 2002, Virginia Beach, Virginia >CONDITION MONITORING FOR LIFE EXTENSION OF FAST, HIGH DENSITY BATTERY CHARGING
【24h】

CONDITION MONITORING FOR LIFE EXTENSION OF FAST, HIGH DENSITY BATTERY CHARGING

机译：快速监测高密度电池寿命的状态监测

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fast, high density battery charging has become an important issue due to recent advances in technology, such as the Electric Vehicle (EV). Batteries that were once charged in a few hours are now being charged in a matter of minutes. Without proper control, these vigorous charge regimes can substantially shorten the life of the battery. A number of techniques, such as pulse charging, have been explored to limit aging that occurs during the gassing phase of the charge. In many cases, the pulse used is varied depending on the battery's State-of-Charge (SOC). Determination of SOC is therefore very important to the success of the pulse charging routine. By identifying the gassing point and SOC of the cell, charge conditions can be adjusted so that the maximum amount of energy can be returned to the battery before premature aging begins. This can be accomplished by monitoring the conditions of the cell as charging progresses. Condition monitoring in batteries has traditionally been limited to external signals, such as voltage, current, and temperature. However, monitoring physically related signals, such as cell impedance, provides a better assessment of the condition and health of the battery, and therefore provides a better means for controlling charging. This paper will focus on applying developed model-based diagnostics for assessment of SOC and State-of-Health (SOH) to improve fast charging performance of secondary batteries.
机译：由于诸如电动汽车（EV）的最新技术进步，快速，高密度的电池充电已成为重要的问题。曾经在几个小时内充满电的电池现在只需几分钟即可充满电。在没有适当控制的情况下，这些剧烈的充电方式会大大缩短电池的寿命。已经研究了许多技术，例如脉冲充电，以限制在充气的充气阶段期间发生的老化。在许多情况下，所使用的脉冲会根据电池的充电状态（SOC）而变化。因此，SOC的确定对于脉冲充电程序的成功非常重要。通过识别电池的放气点和SOC，可以调节充电条件，以便可以在过早老化开始之前将最大能量返回到电池。这可以通过监视充电过程中电池的状况来实现。传统上，电池状态监测仅限于外部信号，例如电压，电流和温度。但是，监视与物理相关的信号（例如电池阻抗）可以更好地评估电池的状况和健康状况，因此可以提供更好的控制充电的方式。本文将重点介绍应用已开发的基于模型的诊断程序来评估SOC和健康状况（SOH），以提高二次电池的快速充电性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号