
试验研究
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高炭负极铅酸动力电池的深循环寿命研究
周皓,周学军,郑伟广,庄建,柳厚田”
(1.长兴诺力电源有限公司,浙江长兴313100;2.复旦大学化学系,上海200433)
摘要:研究了不同炭材料对小型电动车用铅酸动力电池的性能和循环寿命的影响。结果表明,在负极中添加某些较高含量和合适比例的炭材料,可改善电池的充电接受能力和减缓炭对析氢失水的不利影响,提高电池的容量充电效率,从而有效地延长了电池的深循环寿命。在100% DoD(2小时率)深充放条件下,采用高炭负极的12Ah电池的循环寿命达到712次。
关键词:铅酸电池;动力电池;铅炭电池;高炭负极板;炭材料;深描环寿命;充电效率
中图分类号:TM912.1
文献标识码:A
文章编号:1006-0847(2015)03-101-05
Research on deep-cycle life of electricvehicle lead-acid batteries
withnegativeplatesincorporatingsuitablehigh-content
carbonmaterials
ZHOU Hao', ZHOU Xue-jun', ZHENG Wei-guang', ZHUANG Jian', LIU Hou-tian
(1. Chang Xing Noble Power Co., Ltd., Changxing Zhejiang 313100; 2. Department of Chemistry, Fudan University, Shanghai 200433, China
Abstract: The effects of carbon materials added in negative plates are investigated on the performance and cycle life of electric vehicle lead-acid batteries. The results show that the addition of carbon materials with a proper amount and ratio leads to an increased capacity charge efficiency and thus an extended deep-cycle life of the batteries, owing to the improved charge acceptance ability and the alleviated hydrogen evolution compared to the addition of the conventional amount of carbon material. The deep-cycle life of the 12 V12 Ah batteries using such negative plates may reach 712 cycles under 100 % DoD (2 h rate)
Key words: lead-acid battery; power battery; lead-carbon battery; negative plate incorporating high-content carbon; carbon material; deep-cycle life; capacity charge efficiency
0前言
随着混合电动汽车、太阳能、风能储能和其收稿日期:2015-01-28
基金项目:发改委产业振兴和科技改造资助项目
[发投(20131120]
他电动工具产业的发展,化学电源面临若更广阔的发展空间,由此对电池的比功率、高倍率充放电性能、循环寿命、安全性和性价比提出了更高的要求。常规VRLA电池虽然性价比和安全性方面都很优异,但是其比功率、高倍率放电和大电流充电接受能力以及部分荷电或深循环下的循环寿命又明显不能满足市场上对混合电动车和储能电池的性能要求。
2015 No.3 Vo1.52101