CN2390282Y - 新型密闭式氢镍电池 - Google Patents

新型密闭式氢镍电池 Download PDF

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CN2390282Y
CN2390282Y CN99243344U CN99243344U CN2390282Y CN 2390282 Y CN2390282 Y CN 2390282Y CN 99243344 U CN99243344 U CN 99243344U CN 99243344 U CN99243344 U CN 99243344U CN 2390282 Y CN2390282 Y CN 2390282Y
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battery
cell
utility
model
explosion
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高学锋
陈瑶
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LEXEL BATTERY (SHENZHEN) CO Ltd
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LEXEL BATTERY (SHENZHEN) 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
    • H01M10/28—Construction or manufacture
    • H01M10/286—Cells or batteries with wound or folded electrodes
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • 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
    • H01M10/34—Gastight accumulators
    • H01M10/345—Gastight metal hydride accumulators
    • 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
    • H01M50/543—Terminals
    • H01M50/545—Terminals formed by the casing of the cells
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/10—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with wound or folded electrodes
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

本实用新型公开了一种氢镍电池,尤其是一种新型的低成本密闭式氢镍电池。本实用新型包括防爆球1、电池帽2、胶圈3、正极片4、隔膜5、负极片6、正极端7和钢壳8等,隔膜5位于正极片4和负极片6之间层层卷绕后装于钢壳8内,防爆球1、电池帽2和胶圈3装于电池顶端,在所述电池钢壳8内装有填充物9。本实用新型与传统的氢镍电池相比具有容量高、成本低、环保和无记忆效应等优点。

Description

新型密闭式氢镍电池
本实用新型公开了一种氢镍电池，尤其是一种低成本的新型密闭式氢镍电池。
目前，随全球性环保呼声的日益高涨，用氢镍电池取代镉镍电池的市场要求也更加强烈，但由于氢镍电池原材料成本较高，因此价格竞争力成为限制氢镍电池进一步推广的主要因素。因为同样体积的氢镍电池其正常容量是镉镍电池的1.5-2倍，而取代镉镍电池的通常市场做法是只需要相同或相近容量的氢镍电池，因此可以通过降低氢镍电池活性物质用量的办法使其容量与镉镍电池相近而成本得到较大的下降。而目前降低活性物质用量的方法是直接减小电极和隔膜的尺寸而在电池内部未采取其他措施，这样电池内部会出现较大的剩余空间，当充放电进行时电解液会汇集到剩余空间中，造成隔膜和活性物质中电解液贫乏，使电池循环寿命变差。
本实用新型的目的是为克服上述技术缺陷，在保持氢镍电池容量与镉镍电池相近而成本得到较大的下降的同时不致使电池循环寿命变差。
为达到上述目的，本实用新型采用如下技术方案：本实用新型的新型密闭式氢镍电池，包括防爆球1、电池帽2、胶圈3、正极片4、隔膜5、负极片6、正极端7和钢壳8等，隔膜5位于正极片4和负极片6之间层层卷绕后装于钢壳8内，防爆球1、电池帽2和胶圈3装于电池顶端，其特征在于：在所述电池钢壳8内装有填充物9。
由于本实用新型的密闭式氢镍电池内部填充有不参加电池内部电化学反应的填充物占据其剩余空间，所以与传统的氢镍电池相比具有高容量、成本低、环保和无记忆效应等优点，而在工作电压上又与镉镍电池具有良好的互换性。
本实用新型的附图说明如下：
图1是本实用新型的立体分解示意图。
下面结合具体实施例对本实用新型作进一步详细的描述：如图1所示，本实用新型的新型密闭式氢镍电池，包括防爆球1、电池帽2、胶圈3、正极片4、隔膜5、负极片6、正极端7和钢壳8等，隔膜5位于正极片4和负极片6之间层层卷绕后装于钢壳8内，防爆球1、电池帽2和胶圈3装于电池顶端，在所述电池钢壳8内装有填充物9。所述填充物9是各种不参加电池内部电化学反应的所有非流体物质。所述填充物9的体积占电池密闭空间的20％-70％。填充的不参加电池内部电化学反应的物质填充量太少时，不能起到有效降低电池成本的作用；填充量太多时，将会造成电池标称容量过低而失去实用价值。电池内部填充的物质占据其剩余空间，这样即使使用小尺寸的电极也不会造成电解液在电池内部剩余空间汇集，从而保证了电池的寿命。
本实用新型所称各种不参加电池内部电化学反应的所有非流体物质：可以是塑料、陶瓷等非金属，也可以是不锈钢、镍等金属材料；形状可以是圆柱体、方型或粉状、胶状等其他可以放入电池内部的形状；可以是实心体也可以是难以压缩变形的空心体。
在本实用新型的实施例甲中所述填充物9是实心尼龙圆柱体。将长20mm、直径13.2mm的实心尼龙圆柱体9放入AA型电池钢壳中，该圆柱体体积约占电池密闭空间的44％；将氢氧化镍、氧化亚钴及镍粉与1％CMC溶液及60％PTFE溶液以100∶10∶5∶30∶5的比例混合成浆状，填入95％孔率的发泡镍中，经130摄氏度15分钟干燥后，以300吨油压机压制，制得长82mm、宽21mm、厚0.6mm的标称容量600mAh正极片；将AB5吸氢合金与1％CMC溶液及60％PTFE乳液以100∶10∶5的比例混合成浆状，填入95％孔率的发泡镍中经60摄氏度30分钟干燥后，以300吨油压机压制后制得长100mm、宽21mm、厚0.4mm的理论容量1000mAh的负极片；将正极片和负极片用无纺布隔膜分开，卷绕后放入电池钢壳中；注入比重1.3的KOH溶液1.5g，然后用密封圈和电池帽将其密封后制得标称容量为600mAh的AA型氢镍电池甲。
比较例乙：除不加入尼龙圆柱体外其他与实施例甲同，制得标称容量为600mAh的AA型氢镍电池乙，电池乙的材料成本和电池甲相当。
比较例丙：正极片宽度42mm，标称容量1200mAh；负极片宽度42mm，理论容量2000mAh，不加入尼龙圆柱体，其他与实施例甲同，制得标称容量为1200mAh的AA型氢镍电池丙。电池丙的材料成本约为电池甲的1.8倍。
将电池甲、乙、丙以0.1CmA全充全放3周后按下列条件进行充放电循环，结果如表1：
1CmA x72min
停30min
1CmA放电到1.0V
停30min
表1：循环寿命实验结果(放电容量mAh)
周次 0  50  100  150  200
电池甲 608  618  620  616  610
电池乙 610  580  383  155  134
电池丙 1230  1245  1253  1250  1244
从表1中可看出，电池乙在100周循环时容量已下降到标称容量的60％以下，而电池甲和丙则在第200周循环时容量仍保持在标称容量以上，说明本实用新型可以在不影响电池寿命的前提下有效地降低氢镍电池的容量和制造成本，有较大的工业价值。

Claims (2)

1.一种新型密闭式氢镍电池，包括防爆球(1)、电池帽(2)、胶圈(3)、正极片(4)、隔膜(5)、负极片(6)、正极端(7)和钢壳(8)等，隔膜(5)位于正极片(4)和负极片(6)之间层层卷绕后装于钢壳(8)内，防爆球(1)、电池帽(2)和胶圈(3)装于电池顶端，其特征在于：在所述电池钢壳(8)内装有填充物(9)。
2.根据权利要求1所述的新型密闭式氢镍电池，其特征在于：所述填充物(9)的体积占电池密闭空间的20％-70％。
CN99243344U 1999-09-23 1999-09-23 新型密闭式氢镍电池 Expired - Lifetime CN2390282Y (zh)

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DE20016231U DE20016231U1 (de) 1999-09-23 2000-09-19 Abgedichtete Nickel-Wasserstoff-Batterie

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9647246B2 (en) 2012-07-31 2017-05-09 Gs Yuasa International Ltd. Battery
CN109786589A (zh) * 2019-01-04 2019-05-21 上海德朗能动力电池有限公司 一种棱柱形锂离子电池及制备方法，以及其组成的电池模组

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6075638B2 (ja) 2013-09-30 2017-02-08 株式会社Ｇｓユアサ 電池

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9647246B2 (en) 2012-07-31 2017-05-09 Gs Yuasa International Ltd. Battery
CN109786589A (zh) * 2019-01-04 2019-05-21 上海德朗能动力电池有限公司 一种棱柱形锂离子电池及制备方法，以及其组成的电池模组

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