CN111668403A - 极限肩高增容式锂电池盖板 - Google Patents

极限肩高增容式锂电池盖板 Download PDF

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CN111668403A
CN111668403A CN202010633110.7A CN202010633110A CN111668403A CN 111668403 A CN111668403 A CN 111668403A CN 202010633110 A CN202010633110 A CN 202010633110A CN 111668403 A CN111668403 A CN 111668403A
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王文林
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Suzhou Juhong Communication Computer Technology Co ltd
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Priority to DE202020106498.3U priority patent/DE202020106498U1/de
Priority to DE102020129855.2A priority patent/DE102020129855A1/de
Priority to JP2020193410A priority patent/JP7112767B2/ja
Priority to KR1020200156446A priority patent/KR102519026B1/ko
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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
    • 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
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • 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
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Abstract

一种极限肩高增容式锂电池盖板，包括设有二个电极通孔的盖板主体，二个电极压板分别绝缘连接在二个电极通孔中，下绝缘垫连接在盖板主体下面，位于下绝缘垫下方的二个电极连接片通过各自对应的电极通孔分别电接触二个电极压板，各电极通孔的下部设有下沉内翻的底边缘，且底边缘的高度位置低于盖板主体的底面位置，形成电极压板下沉安装空间。本发明的结构合理，利用电极通孔下部的下沉设计，在不减薄电极压板厚度的前提下就可实现电极压板下沉安装，也即电极压板表面和盖板主体上表面的高度差缩小或持平，这样在电池总高度确定的情况下能够进一步提升电池壳体高度，使电池有效空间增容。

Description

极限肩高增容式锂电池盖板
技术领域：本发明涉及一种锂电池配件，特别是锂电池的盖板。
背景技术：高容量锂电池的壳体空间需要尽量的有效利用，相应配套的盖板可以将电极压板、密封垫圈、绝缘圈等电极组件设计装配在盖板上面，减少占用下方的壳体空间。但是，这样布置的电极压板表面明显高于盖板主体的上表面，很多锂电池对于肩高有明确限制，或者说对于锂电池从壳体底部到电极压板表面的总高度有规格限制，完全位于盖板上方的电极组件反而妨碍了电池壳体高度的进一步提升，不利于更充分开发电池壳体的有效利用空间。
发明内容：针对现有技术的不足，本发明提供一种结构合理，可提升电池壳体高度的极限肩高增容式锂电池盖板。
本发明包括设有二个电极通孔的盖板主体，二个电极压板分别绝缘连接在二个电极通孔中，下绝缘垫连接在盖板主体下面，位于下绝缘垫下方的二个电极连接片通过各自对应的电极通孔分别电接触二个电极压板，各电极通孔的下部设有下沉内翻的底边缘，且底边缘的高度位置低于盖板主体的底面位置，形成电极压板下沉安装空间。
进一步的，电极通孔带有上凸缘，置于各自的电极通孔中的电极压板都垫有密封垫圈，电极压板的外周都各套有绝缘圈，电极通孔的上凸缘内翻压触绝缘圈，形成电极密封结构。
再进一步的，与密封垫圈接触密封处的电极压板下端面、以及电极通孔的底边缘上表面都设有波纹凹痕，形成密封加强结构。
本发明的结构合理，利用电极通孔下部的下沉设计，在不减薄电极压板厚度的前提下就可实现电极压板下沉安装，也即电极压板表面和盖板主体上表面的高度差缩小或持平，这样在电池总高度确定的情况下能够进一步提升电池壳体高度，使电池有效空间增容。
下面结合附图和实施例进一步说明本发明。
附图说明：图1是实施例的主示意图。
图2是实施例的立体分解示意图。
图3是图1的A-A局部剖面放大示意图。
图4是上凸缘未内翻状态的盖板主体局部放大示意图。
图5是图4的B-B剖面放大示意图。
图6是图2中的正极压板的仰视示意图。
图7是电极连接片的另一状态示意图。
具体实施方式：如图1至图5所示，盖板主体1上设有二个电极通孔2，作为正、负极的二个电极压板3分别绝缘连接在二个电极通孔2中，下绝缘垫4连接在盖板主体1下面，位于下绝缘垫4下方的二个电极连接片5通过各自对应的电极通孔2分别电接触二个电极压板3。各电极通孔2的下部设有下沉内翻的底边缘6，且底边缘6的高度位置低于盖板主体1的底面位置，形成电极压板下沉安装空间。
在本实施例中，电极通孔2带有上凸缘7，置于各自的电极通孔2中的电极压板3都垫有密封垫圈8，电极压板3的外周都各套有绝缘圈9，电极通孔2的上凸缘7内翻压触绝缘圈9，形成电极密封结构。如图6所示，与密封垫圈8接触密封处的电极压板3下端面、以及电极通孔2的底边缘6上表面都设有波纹凹痕10，形成密封加强结构。波纹凹痕10的存在能够更充分可靠接触密封垫圈8表面，密封性能更强。
电极压板3的外周壁轮廓是多齿形等非圆形，绝缘圈9的内、外周壁轮廓以及电极通孔2的内周壁也是相应的非圆形，相互配合形成止转结构。这样止转配合结构的可靠性高，受到较大转动扭矩时也能够保证不被扭动，大大提高了锂电池的使用安全性。
本实施例在盖板主体1上方、电极通孔2的上凸缘7外周盖有抱紧装饰圈11，可遮挡缝隙，美观防尘。另外，如图7所示，电极连接片5可采用直立引脚式的全极耳构造，适用不同电池的要求。

Claims (6)

1.一种极限肩高增容式锂电池盖板，包括设有二个电极通孔的盖板主体，二个电极压板分别绝缘连接在二个电极通孔中，下绝缘垫连接在盖板主体下面，位于下绝缘垫下方的二个电极连接片通过各自对应的电极通孔分别电接触二个电极压板，其特征为：各电极通孔（2）的下部设有下沉内翻的底边缘（6），且底边缘（6）的高度位置低于盖板主体（1）的底面位置，形成电极压板下沉安装空间。
2.根据权利要求1所述的极限肩高增容式锂电池盖板，其特征为：电极通孔（2）带有上凸缘（7），置于各自的电极通孔（2）中的电极压板（3）都垫有密封垫圈（8），电极压板（3）的外周都各套有绝缘圈（9），电极通孔（2）的上凸缘（7）内翻压触绝缘圈（9），形成电极密封结构。
3.根据权利要求2所述的极限肩高增容式锂电池盖板，其特征为：与密封垫圈（8）接触密封处的电极压板（3）下端面、以及电极通孔（2）的底边缘（6）上表面都设有波纹凹痕（10），形成密封加强结构。
4.根据权利要求2或3所述的极限肩高增容式锂电池盖板，其特征为：电极压板（3）的外周壁轮廓是非圆形，绝缘圈（9）的内、外周壁轮廓以及电极通孔（2）的内周壁也是相应的非圆形，相互配合形成止转结构。
5.根据权利要求2或3所述的高容量锂电池盖板，其特征为：在盖板主体（1）上方、电极通孔（2）的上凸缘（7）外周盖有抱紧装饰圈（11）。
6.根据权利要求4所述的高容量锂电池盖板，其特征为：在盖板主体（1）上方、电极通孔（2）的上凸缘（7）外周盖有抱紧装饰圈（11）。
CN202010633110.7A 2020-07-04 2020-07-04 极限肩高增容式锂电池盖板 Pending CN111668403A (zh)

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DE202020106498.3U DE202020106498U1 (de) 2020-07-04 2020-11-12 Lithiumbatterie-Abdeckplatte zur Volumenerhöhung mittels Grenzschulterhöhe
DE102020129855.2A DE102020129855A1 (de) 2020-07-04 2020-11-12 Lithiumbatterie-Abdeckplatte zur Volumenerhöhung mittels Grenzschulterhöhe
JP2020193410A JP7112767B2 (ja) 2020-07-04 2020-11-20 極小の肩高さを有する容量増加型のリチウム電池カバープレート
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CN114361665B (zh) * 2021-11-23 2022-07-26 宁波震裕汽车部件有限公司 一种动力电池顶盖板结构

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CN212380480U (zh) * 2020-07-04 2021-01-19 苏州炬鸿通讯电脑科技有限公司 极限肩高增容式锂电池盖板

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