CN103515656B - 一种功率型镍氢电池及其在大电流电源上的应用 - Google Patents

一种功率型镍氢电池及其在大电流电源上的应用 Download PDF

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CN103515656B
CN103515656B CN201310427163.3A CN201310427163A CN103515656B CN 103515656 B CN103515656 B CN 103515656B CN 201310427163 A CN201310427163 A CN 201310427163A CN 103515656 B CN103515656 B CN 103515656B
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housing
cell
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CN103515656A (zh
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卞立宪
邱候亮
何招仁
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Zhongguancun Technology Leasing Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H01M10/30—Nickel accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H01M10/28—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract

本发明公开了这样一种功率型镍氢电池及其在大电流电源上的应用。为解决已有镍氢电池存在的大电流持续时间短，散热性能较差，接触电阻较大，安全性能较差，体积较大等问题。本发明采取在所述单体电池（6）芯片上套装有封套（8），并将单体电池（6）的极耳（5）朝下设置在壳体（7）内的空腔内。从而具有能长时间维持大电流，散热性能好，接触电阻小，安全性能好、体积小等优点，适用于在发动机启动中的应用，也可用在激光电源上，还可用在电磁发生器上。

Description

一种功率型镍氢电池及其在大电流电源上的应用
技术领域
本发明涉及一种电池，尤其涉及一种功率型镍氢电池。本发明还涉及该功率型镍氢电池在大电流电源上的应用。
背景技术
当前使用的功率型镍氢电池的结构特点为：1、电池极耳与电解液注入孔置于电池的同一端，正向置放（极耳、注液孔朝上）；2、单体电池用硬壳塑料封装；3、单体电池间用连接片、螺丝连接；4，电池组采用夹件固定。
由此，会产生以下几个问题。1、随着时间推移电池电解液逐渐损耗，电解液液位下降，易使电池所产生的电流变小，导致电池性能明显变差；2、电池的散热性较差。由于功率型电池的运行电流大，要求电池结构具有良好的散热性，硬塑外壳的导热性相对较差，电池组多个单体电池夹挤在一起，运行热量不易耗散。3、电池用连接片、螺丝连接，接触电阻较大。4、电池组用夹件固定，各单体电池的电极，连接片、引线等都暴露在外，其电池的安全性较差。5、电池结构的引出孔多，电池漏液、爬碱的可能性增大，从而导致电池器件腐蚀、损坏。6.体积较大。
发明内容
本发明的目的是提供一种能长时间维持大电流，散热性能好，接触电阻小，安全性能好、体积小的功率型镍氢电池。本发明的目的还在于提供改进后的镍氢电池新用途。
为达到上述目的，本发明一种功率型镍氢电池，由壳体、盖板和多个单体电池组成，多个单体电池通过串联的方式置于壳体内，在壳体顶部安装有盖板，在单体电池上端设置有电解液注液孔，在所述单体电池芯片上套装有封套，并将单体电池的极耳朝下设置在壳体内的空腔内。
所述极耳通过设置在两侧的集流板与已置于壳体上的电极连接，集流板设置在壳体两短侧板与多个单体电池之间。
在所述壳体外表面上设置有多个散热片。
所述封套由具有导热性能的可塑材料制成，封套的单层厚度为0.5mm～1mm。
所述壳体由金属材料制成。
一种功率型镍氢电池在发动机启动中的应用。
一种功率型镍氢电池在激光电源上的应用。
一种功率型镍氢电池在电磁发生器上的应用。
为了更好地理解本发明的实质，下面将用改进后的镍氢电池性能和参数来说明其在大电流电源上的应用。
由于将单体电池芯片上的极耳与电解液注液孔方向相反地朝下设置在壳体内。当电池的电解液液面下降时，电池芯片的反应高效区仍浸在电解液中，此时芯片顶部露出，由于是低效区域，造成的损失可以忽略不计。因此，可有效地提高电池性能的持久性。经实测表明，本发明的放电倍率为50C～100C，比一般的动力电池高几十倍。
又由于在各单体电池芯片上套装有封套。封套具有软、薄、轻的特点，封套的单层厚度为0.5mm～1mm。套封后可对电池芯片起到很好的保护作用。在电池组中，各单体电池间为软性接触，贴合性好。由于封套材料的导热性能远比塑料硬壳的导热性能好，所以，单体电池软包后，散热性能有很大地改善。
另外由于壳体由金属材料制成；在壳体外表面上设置有多个散热片。因此可进一步提高电池结构的安全性和散热性，同时，电池内施行整体浇注封装，密封性好，提高了产品的防腐性能。
附图说明下面结合附图和实施例对本发明作进一步的详细说明。
附图1是本发明一种功率型镍氢电池的主剖视示意图。
附图2是本发明一种功率型镍氢电池的左剖视示意图。
图中：1.电极2.电解液注液孔3.集流板4.短侧板5.极耳6.单体电池7.壳体8.封套。
具体实施方式附图1、附图2所示一种功率型镍氢电池，由壳体7、盖板和多个单体电池6组成，多个单体电池6通过串联的方式置于壳体7内，在壳体7顶部安装有盖板，在单体电池6上端设置有电解液注液孔2，在所述单体电池6芯片上套装有封套8，并将单体电池6的极耳5朝下设置在壳体7内的空腔内；所述极耳7通过设置在两侧的集流板3与已置于壳体7上的电极1连接，集流板3设置在壳体7两短侧板4与多个单体电池6之间；在所述壳体7外表面上设置有多个散热片；所述封套8由具有导热性能的可塑材料制成，封套8的单层厚度为0.5mm～1mm；所述壳体7由金属材料制成。

Claims (1)

1.一种功率型镍氢电池，由壳体、盖板和多个单体电池组成，多个单体电池通过串联的方式置于壳体内，在壳体顶部安装有盖板，在单体电池上端设置有电解液注液孔，在所述单体电池芯片上套装有封套，其特征在于：将单体电池（6）的极耳（5）朝下设置在壳体（7）内的空腔内；所述封套（8）由具有导热性能的可塑材料制成，封套（8）的单层厚度为0.5mm～1mm；所述极耳（5）通过设置在两侧的集流板（3）与已置于壳体（7）上的电极（1）连接，集流板（3）设置在壳体（7）两短侧板（4）与多个单体电池（6）之间。
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CN2569351Y (zh) * 2002-06-07 2003-08-27 中国科学院上海微系统与信息技术研究所 一种改进型的双极性镍氢电池组
CN2605670Y (zh) * 2003-03-28 2004-03-03 东莞新能源电子科技有限公司 聚合物锂离子二次电池或电池组的散热包装
CN2662460Y (zh) * 2003-06-10 2004-12-08 暐迅科技股份有限公司 锂离子电池
CN201117702Y (zh) * 2007-11-20 2008-09-17 浙江天能电子电器有限公司 一种模块电芯的功率型方体镍氢电池组
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CN203536478U (zh) * 2013-09-18 2014-04-09 福建卫东实业股份有限公司 功率型镍氢电池

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