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混合动力车用阀控式铅酸蓄电池负极
碳添加剂的研究进展
赵杰权",马宁1,柳厚田2
(1.香港一电实业(宜兴)有限公司,江苏宜兴214200;2.复且大学化学系,上海200433)
摘要:介绍了混合动力车用阀控式铅酸蓄电池负极加碳的最新研发进展。加入较高含量碳材料对铬酸蓄电池性能有所改善,如增加导电性,使硫酸铅分布灼匀,增加比表面积,降低极化,增大电客作用等,也指出了加入碳后一些不利的影响。
关键词:混合动力车;阔控式铅酸蓄电池;高倍率部分荷电态;碳添加剂;负极板
中图分类号:TM912.9
文献标识码:A文章编号:1006-0847(2010)05-195-13
Recentprogressontheresearchofcarbonadditivesto
negativeplateof VRLAbatteries forHEV
ZHAO Jiequan', MA Ning', LIU Houtian?
(1.Hongkong First Power (yixing) Industry Co., Ltd, Yixing Jiangsu 214215;
2.ChemistiyDepartment,Fudan University,Shanghai 200433, China
Abstract:In this review, recent progress on the study of carbon additives to negative plates of valve regulated leadacid (VRLA) bateries for hybrid vehicles (HEV) is introduced. Adding higher level of carbon additives can improve the performances of VRLA batteries, such as enhanced electronic conductiv-ity of interparticles, uniformly dispersed lead sulfate crystallites, increased specific area of negative active material, decreased polarization, and increased double layer capacitance of the negative plates. In the meantime, the disadvantages of the carbon additives are also mentioned.
Key words:hybrid electric vehicle (HEV); valveregulated leadacid (VRLA) battery; high rate partial state of charge (HRPSoC); carbon additive; negative plate
1概述
当前,环境问题已成为经济发展的制约条件,随着人们环保意识的不断提高,对减少城乡燃油汽车污染排放的期望越来越大,为此,国内外对开发电动汽车和混合动力车赋予了极大的关注度。在欧
收稿日期:2010-06-27 万方数据
洲,有许多国家都提出了有关CO,排放量的规定其月的是节约燃油和降低CO,排放量。近年来,混合动力车(HEV)发展迅速,在混合动力车应用中,蓄电池会利用再生制动产生的能量充电,在汽车加速时放电来提供辅助的动力。在这两种情况下使用时,电池充/放电的瞬间电流都很大,通常约为2C~5C。为了保证足够的功率输出和较高的充电效率,薪电池经常工作在荷电的中等状态(大约 30%~70%),这种类型的应用称为高倍率部分荷电状态(HRPSoC)循环应用"-。由于铅酸蓄电池的性能稳定,成本较低,目前仍是混合动力车备选
2010-No.SVol.47195