• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>6th Hybrid and Electric Vehicles Conference >Investigation of characteristics regarding lithium-ion battery cells for an electric race car application
【24h】

Investigation of characteristics regarding lithium-ion battery cells for an electric race car application

机译：电动赛车用锂离子电池的特性研究

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

The objective of this paper is to investigate the performance, build quality and safety aspects of the lithium-ion battery cell used in the battery package of the Revolve NTNU 2016 electric race car, called Gnist. Cell testing revealed that the chosen cell can deliver charging currents of 70A for 300ms, 56A for 1000ms and maximum amplitude of 80A, i.e. the cell is able to deliver the maximum power requirements of the car's motors. Entropy was found to have a significant impact on heat generation, as charging has a cooling effect on the cell in most of the charge range. Removing charge bursts proved very disadvantageous in this context, as the decline in temperature was only 2.1°C while the decline in discharge capacity was 60%. Degradation testing showed that surrounding temperature is the most influential factor. When running two similar tests, one at 35°C and another at 25°C, the latter only degraded to 98.1% capacity after 221.5 normalised cycles while the former had a capacity of 93.1% after 245.3 normalised cycles. Furthermore, it was found that applying charging bursts would improve cycle life. When running the same test protocol with 35°C, but with no charging bursts, capacity was 90.3% after 147.8 normalised cycles.
机译：本文的目的是研究Revolve NTNU 2016电动赛车Gnist电池组中使用的锂离子电池组的性能，制造质量和安全性。电池测试表明，所选电池可以提供70A的充电电流（持续300ms），56A的充电电流（持续1000ms）和最大幅度为80A，即该电池能够满足汽车电机的最大功率要求。发现熵对热量产生有重大影响，因为在大多数充电范围内，充电都会对电池产生冷却作用。在这种情况下，消除电荷爆发被证明是非常不利的，因为温度下降仅为2.1°C，而放电容量下降为60％。降解测试表明，环境温度是影响最大的因素。当运行两个类似的测试时，一个在35°C时，另一个在25°C时，后者在221.5归一化循环后仅降级至98.1％的容量，而前者在245.3归一化循环后具有93.1％的容量。此外，已经发现，施加充电突发将改善循环寿命。当在35°C下运行相同的测试协议但没有充电突发时，在147.8个标准化循环后，容量为90.3％。

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