WO2024000874A1 - 一种无边圆柱电池结构及其制备方法 - Google Patents

一种无边圆柱电池结构及其制备方法 Download PDF

Info

Publication number
WO2024000874A1
WO2024000874A1 PCT/CN2022/121975 CN2022121975W WO2024000874A1 WO 2024000874 A1 WO2024000874 A1 WO 2024000874A1 CN 2022121975 W CN2022121975 W CN 2022121975W WO 2024000874 A1 WO2024000874 A1 WO 2024000874A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottom cover
cover
cylindrical battery
combined cover
battery structure
Prior art date
Application number
PCT/CN2022/121975
Other languages
English (en)
French (fr)
Inventor
王思凡
程可文
程智林
Original Assignee
深圳市聚和源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市聚和源科技有限公司 filed Critical 深圳市聚和源科技有限公司
Priority to EP22896822.8A priority Critical patent/EP4366046A1/en
Publication of WO2024000874A1 publication Critical patent/WO2024000874A1/zh

Links

Images

Classifications

    • 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
    • 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/317—Re-sealable arrangements
    • 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

Definitions

  • the invention relates to a battery, in particular to an edgeless cylindrical battery structure and a preparation method thereof.
  • Portable electronic devices, e-cigarettes, and atomizer devices are widely used in people's production and life. There is a trend towards unified battery safety performance and appearance standards and higher capacity development trends.
  • traditional soft-packed cylindrical batteries when In order to increase the capacity of the battery to enhance its endurance, the diameter and height of the soft-pack cylindrical battery are usually increased; when the diameter and height of the cylindrical battery are reduced, the capacity and endurance of the battery are usually reduced. Therefore, traditional cylindrical batteries cannot take into account their large capacity and small size at the same time.
  • the technical problem to be solved by the present invention is an edgeless cylindrical battery structure and its preparation method.
  • the shape and size of the battery structure are highly consistent and have higher performance.
  • Safety performance and higher-capacity batteries can increase customer experience and effectively solve the shortcomings of existing technologies.
  • an edgeless cylindrical battery structure including a combined cover with a pressure relief structure, a bottom cover, a core with single or multi-pole tabs at both ends, and a core storage container.
  • the combined cover and bottom cover are used to weld the carrier.
  • the roll core is placed in the case.
  • the positive tab of the roll core is connected to the combined cover.
  • the negative pole tab of the roll core is connected to the bottom cover.
  • the combined cover forms the positive electrode.
  • the bottom cover forms the negative electrode
  • the combined cover and bottom cover are sealed and installed on both sides of the casing;
  • the combined cover includes a fixing part, a sealing part and an adhesive layer.
  • the fixing part is fixed on the shell.
  • the fixing part has an opening for the sealing part to be buckled into.
  • the protruding part of the sealing part is buckled into the opening.
  • An adhesive layer is applied between the inside and the fixing parts.
  • the fixing member uses a steel sheet with the same cross-sectional shape as the shell.
  • a recessed assembly cavity is provided on the outside of the steel sheet.
  • the sealing member uses an aluminum sheet. The entire sealing member is buckled and installed in the assembly cavity. Inside, the protruding part of the seal snaps into the opening.
  • the adhesive layer adopts composite adhesive material.
  • the composite bonding material adopts PP material.
  • the housing is made of stainless steel with both ends transparent.
  • the bottom cover is made of stainless steel and has a circular injection hole in the middle. The electrolyte is injected into the housing from the injection hole on the bottom cover. .
  • the liquid injection hole is sealed by a sealing nail.
  • the preparation method of the edgeless cylindrical battery structure of the present invention includes the following specific steps:
  • the edgeless battery of the present invention has a space utilization rate increased by 12% and a capacity increased by 10%;
  • the edgeless battery uses customized standard accessories to easily implement a high degree of automation, and the product size consistency has obvious advantages;
  • the shell serves as a supporting structure to reduce the impact on the internal core and reduce the thermal runaway of the core under impact.
  • Figure 1 is a schematic internal cross-sectional view of the present invention
  • Figure 2 is an exploded view of the present invention
  • FIG. 3 is an overall structural diagram of the present invention.
  • Figure 4 is a partial cross-sectional schematic diagram of the present invention.
  • An edgeless cylindrical battery structure of the present invention includes a combined cover with a pressure relief structure, a bottom cover 5, a roll core with single or multi-pole tabs at both ends, and a core storage container.
  • the housing 1 for the combined cover and bottom cover welding carrier the core 6 is put into the housing 1, the positive tab 7 of the core 6 is connected to the combined cover, and the negative tab 7 of the core 6 is connected to the bottom cover 5 Connect, the combined cover is used to form the positive electrode, and the bottom cover 5 is used to form the negative electrode.
  • the combined cover and the bottom cover 5 are sealed and installed on both sides of the housing 1;
  • the combined cover includes a fixing part 2, a sealing part 3 and an adhesive layer 11.
  • the fixing part 2 is fixed on the housing 1.
  • the fixing part 2 has an opening for the sealing part to be buckled into.
  • the protrusion of the sealing part 3 The outer part is buckled into the opening and fixed with an adhesive layer between the fixing part 2.
  • the fixing member 2 is made of a steel sheet with the same cross-sectional shape as the housing 1.
  • the cross-section of the housing is circular, so the fixing member in this embodiment is also circular, and a recess is provided on the outside of the steel sheet.
  • the seal 3 is made of an aluminum sheet. The entire seal 3 is buckled and installed in the assembly cavity. The protruding part of the seal 3 is buckled into the opening.
  • the adhesive layer 11 is made of composite adhesive material.
  • the composite adhesive material in the battery is polypropylene PP material. When the battery is short-circuited and the temperature rises to about 120 degrees, the composite material melts and the aluminum cover falls off to relieve pressure.
  • the adhesive layer of the present invention can also use other adhesives, which can melt when the temperature rises to a certain level, causing the seal to fall off, thereby achieving the purpose of safe pressure relief.
  • the housing 1 is made of stainless steel with both ends transparent.
  • the bottom cover 5 is made of stainless steel and has a circular injection hole 8 in the middle. The electrolyte is injected from the injection hole 8 on the bottom cover 5 into In the housing 1, the liquid injection hole 8 is sealed by a sealing nail 4, and the liquid injection hole is sealed by the sealing nail after the liquid injection is completed.
  • the sealing nail is sealed by laser welding or by composite material and then laser welding.
  • the preparation method of the battery of the present invention is as follows:
  • the edgeless battery of the present invention has a space utilization rate increased by 12% and a capacity increased by 10% according to the same specifications and models; compared with the traditional soft pack battery manufacturing process, the manufacturing process is reduced by 30%, resulting in a faster manufacturing cycle and lower manufacturing cost;
  • the edgeless battery uses customized standard accessories to easily implement a high degree of automation, and the product size consistency has obvious advantages; when the pressure of the new pressure relief device of the combined cover reaches the threshold, the aluminum parts in the combined cover will burst open to provide pressure relief protection; Made of 0.150mm alloy metal, it has high structural strength and good mechanical load-bearing capacity. Under the impact of heavy objects, the shell serves as a supporting structure to reduce impact on the internal core and reduce thermal runaway of the core under impact.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

本发明公开了一种无边圆柱电池结构及其制备方法，包括带有泄压结构的组合盖、底盖(5)、两头出单极耳或多极耳的卷芯以及作为卷芯储存容器、组合盖件、底盖焊接载体用的壳体(1)，卷芯(6)放入壳体(1)内，卷芯(6)的正极极耳(7)与组合盖件连接，卷芯(6)的负极极耳与底盖(5)连接，组合盖件以此形成正极，底盖(5)以此形成负极，组合盖件与底盖(5)密封安装在壳体(1)的两侧；本发明外形尺寸一致性高，具备更高安全性能和更高容量电池来增加客户体验感。

Description

一种无边圆柱电池结构及其制备方法 技术领域
本发明涉及一种电池，具体涉及一种无边圆柱电池结构及其制备方法。
背景技术
便携式电子设备和电子烟、雾化器设备在人们的生产和生活中有着极为广泛的应用，对电池安全性能和外形标准统一及更高容量发展趋势，但是，对于传统的软包圆柱电池，当为了提高电池的容量以增强自身的续航能力时，通常会导致软包圆柱电池的直径和高度增大；当为了降低圆柱电池的直径和高度时，通常会减低电池的容量和续航能力。因此，传统的圆柱电池无法同时兼顾自身的大容量和小体积。
传统软包圆柱电池缺点：1.在充放电和储存过程中，电解液会不断腐蚀铝层，造成电池存放后产生气体并造成漏液等致命性不良；2.软包电池仅靠薄弱铝塑膜(113um厚)不能完全保护卷芯，会造成卷芯内部因外加挤压致正负极接触短路，形成致命损伤；3.软包电池由于制成过程中设备、人员操作手法差异性导致电池外形尺寸一致性差；4.软包电池由于顶封、侧封、二封边的封装工艺导致内部空间有限，容量不能进一步提升。
发明内容
本发明所要解决的技术问题是一种无边圆柱电池结构及其制备方法，通过设置一种具有特殊泄压结构的组合盖件，并采用不同的密封方式，其外形尺寸一致性高、具备更高安全性能和更高容量电池来增加客户体验感，能够有效解决现有技术中的不足。
本发明是通过以下技术方案来实现的：一种无边圆柱电池结构，包括带有泄压结构的组合盖、底盖、两头出单极耳或多极耳的卷芯以及作为卷芯储存容器、组合盖件、底盖焊接载体用的壳体，卷芯放入壳体内，卷芯的正极极耳与 组合盖件连接，卷芯的负极极耳与底盖连接，组合盖件以此形成正极，底盖以此形成负极，组合盖件与底盖密封安装在壳体的两侧；
所述组合盖件包括固定件、密封件以及胶粘层，固定件固定在壳体上，固定件上具有一个供密封件扣入用的开口腔，密封件的凸出部分扣入至开口腔内并与固定件之间打胶粘层固定。
作为优选的技术方案，所述固定件采用一形状与壳体截面形状相同的钢片，钢片的外侧设置有一凹陷的装配腔，密封件采用一铝片，整个密封件扣入安装在装配腔内，密封件的凸出部分扣入至开口腔内。
作为优选的技术方案，胶粘层采用复合粘接材料。
作为优选的技术方案，所述复合粘接材料采用PP材料。
作为优选的技术方案，所述壳体采用不锈钢材质，其两端通透，底盖采用不锈钢材质，中间设置有圆形的注液孔，电解液自底盖上的注液孔注入至壳体内。
作为优选的技术方案，所述注液孔通过一密封钉密封。
本发明的的无边无边圆柱电池结构的制备方法，包括以下具体步骤：
S1、准备卷芯、壳体、组合盖件以及底盖，然后先将卷芯放入壳体，将卷芯的正极极耳与组合盖件用激光焊接，负极极耳与底盖用激光焊接，以此将组合盖件形成正极，底盖形成负极；
S2、壳体的两端焊接牢固后，用激光焊把组合盖件和底盖进行密封；
S3、最后从底盖的注液孔注入电解液，并将密封钉填入底盖的注液孔内，完成最后一道密封。
本发明的有益效果是：1、本发明的无边电池按同规格型号电池，空间利用率提高12％，容量提升10％；
2、和传统软包电池制造工序相比减少30％,从而带来更快制造周期和更低的制造成本；
3、无边电池采用定制标准配件容易实行高度自动化，产品尺寸一致性优势明显；
4、组合盖件(新型泄压装置)当压力达到阀值时，组合盖件中的铝件会冲开，起到泄压保护作用；
5、采用0.150mm合金属，具备结构强度高，承受良好的机械附载能力，重物冲击下，壳体做支撑结构，减少对内部卷芯撞击，减小冲击下，卷芯热失控的情况。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的内部截面示意图；
图2为本发明的爆炸图；
图3为本发明的整体结构图；
图4为本发明的局部截面示意图。
具体实施方式
本说明书中公开的所有特征，或公开的所有方法或过程中的步骤，除了互相排斥的特征和/或步骤以外，均可以以任何方式组合。
本说明书(包括任何附加权利要求、摘要和附图)中公开的任一特征，除非特别叙述，均可被其他等效或具有类似目的的替代特征加以替换。即，除非特别叙述，每个特征只是一系列等效或类似特征中的一个例子而已。
请参阅图1-图3，本发明的一种无边圆柱电池结构，包括带有泄压结构的组合盖、底盖5、两头出单极耳或多极耳的卷芯以及作为卷芯储存容器、组合盖件、底盖焊接载体用的壳体1，卷芯6放入壳体1内，卷芯6的正极极耳7与组合盖件连接，卷芯6的负极极耳与底盖5连接，组合盖件以此形成正极，底盖5 以此形成负极，组合盖件与底盖5密封安装在壳体1的两侧；
其中，组合盖件包括固定件2、密封件3以及胶粘层11，固定件2固定在壳体1上，固定件2上具有一个供密封件扣入用的开口腔，密封件3的凸出部分扣入至开口腔内并与固定件2之间打胶粘层固定。
请参阅图4，固定件2采用一形状与壳体1截面形状相同的钢片，壳体截面为圆形，故本实施例中的固定件也为圆形，钢片的外侧设置有一凹陷的装配腔，密封件3采用一铝片，整个密封件3扣入安装在装配腔内，密封件3的凸出部分扣入至开口腔内，胶粘层11采用复合粘接材料，本实施例中的复合粘接材料聚丙烯PP材料，当电池短路时温度升到120度左右的时候，复合材料融化，铝盖脱落起到泄压作用。
本发明的胶粘层也可以采用其它的粘接剂，在温度升高到一定程度下后即可融化，使得密封件脱落，达到安全泄压的目的。
本实施例中，壳体1采用不锈钢材质，其两端通透，底盖5采用不锈钢材质，中间设置有圆形的注液孔8，电解液自底盖5上的注液孔8注入至壳体1内，注液孔8通过一密封钉4密封，注液孔在注液完成后通过密封钉密封。
本实施例中，密封钉的密封采用激光焊焊接或者通过复合材料密封后再用激光焊密封
本发明的电池的制备方法如下：
首先准备卷芯、壳体、组合盖件以及底盖，然后先将卷芯放入壳体，将卷芯的正极极耳与组合盖件用激光焊接，负极极耳与底盖用激光焊接，以此将组合盖件形成正极，底盖形成负极；然后壳体的两端焊接牢固后，用激光焊把组合盖件和底盖进行密封；最后从底盖的注液孔注入电解液，并将密封钉填入底盖的注液孔内，完成最后一道密封。
本发明的无边电池按同规格型号电池，空间利用率提高12％，容量提升10％；和传统软包电池制造工序相比减少30％,从而带来更快制造周期和更低的制造成本；无边电池采用定制标准配件容易实行高度自动化，产品尺寸一致性优势明显；组合盖件新型泄压装置当压力达到阀值时，组合盖件中的铝件会冲开，起 到泄压保护作用；采用0.150mm合金属，具备结构强度高，承受良好的机械附载能力，重物冲击下，壳体做支撑结构，减少对内部卷芯撞击，减小冲击下，卷芯热失控的情况。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护范围为准。

Claims (7)

  1. 一种无边圆柱电池结构，其特征在于：包括带有泄压结构的组合盖、底盖(5)、两头出单极耳或多极耳的卷芯以及作为卷芯储存容器、组合盖件、底盖焊接载体用的壳体(1)，卷芯(6)放入壳体(1)内，卷芯(6)的正极极耳(7)与组合盖件连接，卷芯(6)的负极极耳与底盖(5)连接，组合盖件以此形成正极，底盖(5)以此形成负极，组合盖件与底盖(5)密封安装在壳体(1)的两侧；
    所述组合盖件包括固定件(2)、密封件(3)以及胶粘层(11)，固定件(2)固定在壳体(1)上，固定件(2)上具有一个供密封件扣入用的开口腔，密封件(3)的凸出部分扣入至开口腔内并与固定件(2)之间打胶粘层固定。
  2. 根据权利要求1所述的无边圆柱电池结构，其特征在于：所述固定件(2)采用一形状与壳体(1)截面形状相同的钢片，钢片的外侧设置有一凹陷的装配腔，密封件(3)采用一铝片，整个密封件(3)扣入安装在装配腔内，密封件(3)的凸出部分扣入至开口腔内。
  3. 根据权利要求1所述的无边圆柱电池结构，其特征在于：胶粘层(11)采用复合粘接材料。
  4. 根据权利要求3所述的无边圆柱电池结构，其特征在于：所述复合粘接材料采用PP材料。
  5. 根据权利要求1所述的无边圆柱电池结构，其特征在于：所述壳体(1)采用不锈钢材质，其两端通透，底盖(5)采用不锈钢材质，中间设置有圆形的注液孔(8)，电解液自底盖(5)上的注液孔(8)注入至壳体(1)内。
  6. 根据权利要求5所述的无边圆柱电池结构，其特征在于：所述注液孔(8)通过一密封钉(4)密封。
  7. 一种如权利要求1至6任意一项所述的无边无边圆柱电池结构的制备方法，其特征在于：包括以下具体步骤：
    S1、准备卷芯、壳体、组合盖件以及底盖，然后先将卷芯放入壳体，将卷芯的正极极耳与组合盖件用激光焊接，负极极耳与底盖用激光焊接，以此将组合盖件形成正极，底盖形成负极；
    S2、壳体的两端焊接牢固后，用激光焊把组合盖件和底盖进行密封；
    S3、最后从底盖的注液孔注入电解液，并将密封钉填入底盖的注液孔内，完成最后一道密封。
PCT/CN2022/121975 2022-06-29 2022-09-28 一种无边圆柱电池结构及其制备方法 WO2024000874A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22896822.8A EP4366046A1 (en) 2022-06-29 2022-09-28 Edge-free cylindrical battery structure and preparation method therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210761979.9A CN114927809A (zh) 2022-06-29 2022-06-29 一种无边圆柱电池结构及其制备方法
CN202210761979.9 2022-06-29

Publications (1)

Publication Number Publication Date
WO2024000874A1 true WO2024000874A1 (zh) 2024-01-04

Family

ID=82816121

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/121975 WO2024000874A1 (zh) 2022-06-29 2022-09-28 一种无边圆柱电池结构及其制备方法

Country Status (3)

Country Link
EP (1) EP4366046A1 (zh)
CN (1) CN114927809A (zh)
WO (1) WO2024000874A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114927809A (zh) * 2022-06-29 2022-08-19 深圳市聚和源科技有限公司 一种无边圆柱电池结构及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005149909A (ja) * 2003-11-14 2005-06-09 Hitachi Maxell Ltd 密閉型電池
CN104485483A (zh) * 2014-12-16 2015-04-01 天津神鹿能源有限公司 一种锂离子动力电池
CN112993452A (zh) * 2021-04-13 2021-06-18 珠海冠宇电池股份有限公司 扣式电池及电子设备
CN214227087U (zh) * 2021-02-05 2021-09-17 惠州市超聚电池有限公司 圆形极耳组件及扣式电池
CN113488692A (zh) * 2021-08-09 2021-10-08 东莞市电的电子有限公司 一种纽扣电池防爆密封结构、纽扣电池及其封装方法
CN114927809A (zh) * 2022-06-29 2022-08-19 深圳市聚和源科技有限公司 一种无边圆柱电池结构及其制备方法
CN217641558U (zh) * 2022-06-29 2022-10-21 深圳市聚和源科技有限公司 一种无边圆柱电池结构

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005149909A (ja) * 2003-11-14 2005-06-09 Hitachi Maxell Ltd 密閉型電池
CN104485483A (zh) * 2014-12-16 2015-04-01 天津神鹿能源有限公司 一种锂离子动力电池
CN214227087U (zh) * 2021-02-05 2021-09-17 惠州市超聚电池有限公司 圆形极耳组件及扣式电池
CN112993452A (zh) * 2021-04-13 2021-06-18 珠海冠宇电池股份有限公司 扣式电池及电子设备
CN113488692A (zh) * 2021-08-09 2021-10-08 东莞市电的电子有限公司 一种纽扣电池防爆密封结构、纽扣电池及其封装方法
CN114927809A (zh) * 2022-06-29 2022-08-19 深圳市聚和源科技有限公司 一种无边圆柱电池结构及其制备方法
CN217641558U (zh) * 2022-06-29 2022-10-21 深圳市聚和源科技有限公司 一种无边圆柱电池结构

Also Published As

Publication number Publication date
EP4366046A1 (en) 2024-05-08
CN114927809A (zh) 2022-08-19

Similar Documents

Publication Publication Date Title
WO2024000874A1 (zh) 一种无边圆柱电池结构及其制备方法
CN214203912U (zh) 电池
CN210723171U (zh) 一种含软包电芯的电池
CN111180616A (zh) 纽扣电池及其制备工艺
CN110993838A (zh) 热封电池
CN217641558U (zh) 一种无边圆柱电池结构
CN109860447A (zh) 一种l型连接片双极柱锂电池盖板
CN206059543U (zh) 一种防水锂离子电池
CN210956775U (zh) 一种含软包电芯的电池
TWI458156B (zh) Lithium ion battery and preparation method thereof
CN116435720A (zh) 一种锂电池的加工成型方法
CN202633450U (zh) 软包装锂离子电池
CN217507488U (zh) 一种方形锂离子电池及模组
CN212062599U (zh) 一种纽扣电池
CN212648339U (zh) 锂离子电池
CN113809486A (zh) 钢壳扣式电池
CN111261806B (zh) 高强度软包电池及其制作方法以及电池模组
JP3614891B2 (ja) 密閉型電池
CN208781893U (zh) 一种软包装锂离子电池
WO2022077867A1 (zh) 软包电池及其制作方法
CN215771462U (zh) 一种硬壳电池及用电设备
CN219203418U (zh) 一种电芯及动力设备
CN216793838U (zh) 一种便携装配的硬壳电池
CN211376674U (zh) 热封电池
CN219497930U (zh) 软包电芯及电池模组

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2022896822

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022896822

Country of ref document: EP

Effective date: 20240131

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22896822

Country of ref document: EP

Kind code of ref document: A1