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汽车安全与节能学报

汽车安全与节能学报 ›› 2011, Vol. 2 ›› Issue (1): 58-61.DOI: 10.3969/j.issn.1674-8484.2011.01.008

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车用磷酸铁锂/石墨电池性能特性研究（英文）

 曹辉1、2, 陈晓宇1、2 侯敏1, 赵文鹏1, 张建文1, 王东1、2   

  1. 1.上海航天电源技术有限公司，上海 201615，中国; 2.上海空间电源研究所，上海 200245，中国
  • 收稿日期:2010-12-28 出版日期:2011-01-15 发布日期:2011-06-17
  • 作者简介:作者简介/ First author： 曹 辉/ CAO Hui（1978－），男（汉），湖北，主任工程师。E-mail： caohui0104@sina.com
  • 基金资助:

    基金项目/ Supported by： 上海市科学技术协会，新能源技术项目/ Science and Technology Commission of Shanghai
     Municipality, New energy Technologies Program（c68545950x 00220090001）

Performance characteristics of LiFePO4/graphite batteries for electric vehicles

Cao-Hui-1、2, CHEN  Xiao-Yu-1、2, HOU  Min-1, ZHAO  Wen-Peng-1, ZHANG  Jian-Wen-1, WANG  Dong-1、2   

  1. 1. Shanghai Aerospace Power Technology Co., Ltd, Shanghai 201615, China; 2. Shanghai Institute of Space Power Source, Shanghai 200245, China
  • Received:2010-12-28 Online:2011-01-15 Published:2011-06-17
  • About author:作者简介/ First author： 曹 辉/ CAO Hui（1978－），男（汉），湖北，主任工程师。E-mail： caohui0104@sina.com
  • Supported by:

    基金项目/ Supported by： 上海市科学技术协会，新能源技术项目/ Science and Technology Commission of Shanghai
     Municipality, New energy Technologies Program（c68545950x 00220090001）

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摘要：     为适合电动车用需求，设计并测试了质量850 g 容量25 Ah磷酸铁锂为阳极的电池。采用了不同的倍率放电，循环测试和滥用测试等方法，对电池性能进行了评估。该电池在1 C倍率放电条件下容量达到26 Ah；在6 C倍率（150 A）放电下， 50%充电状态（SOC）电压在3 V左右，容量保持可达98%。在1 700次循环后，保持90%的容量。电池通过了由美国政府制订的相关标准中的全部“滥用”测试。可以得出结论: 该电池具有平缓的放电电压平台和很好的放电性能，长循环寿命均符合车用要求。由该单体电池2并联102串联所组装的16 kWh车用电池系统已经提交给上海汽车集团测试使用。

关键词: 锂离子电池, 电动车(EV), LiFePO4

Abstract: Cells of 25 Ah with mass of 850 g were designed and tested with LiFePO4 (LFPO) as cathode material according to electrical vehicle demands. Discharges of different rates , cycles tests and abuse tests were adopted to certify that the cells have a discharge capacity of 26 Ah at 1 C rate and a high-rate capacity retention of 98% even at 6 C rate (150 A). The voltage at 50% SOC (state of charge) is about 3.0 V when discharged at 6 C rate. The capacity retention of 25-Ah cells is about 90% after 1 700 cycles. All the abuse tests on 25-Ah cells were carried out based on “Electrical Energy Storage System Abuse Test Manual for Electric and Hybrid Electric Vehicle Applications” suggested by U.S. Department of Energy FreedomCAR & Vehicle Technologies Program with satisfactory results. The 16-kWh EV battery units each assembled by 2 parallel, 102 series connections using these batteries have been delivered to Shanghai Automotive Industry Corporations.

Key words: lithium ion battery, electric vehicle (EV), LiFePO4

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