WO2022206384A1 - 一种电池 - Google Patents

一种电池 Download PDF

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Publication number
WO2022206384A1
WO2022206384A1 PCT/CN2022/081084 CN2022081084W WO2022206384A1 WO 2022206384 A1 WO2022206384 A1 WO 2022206384A1 CN 2022081084 W CN2022081084 W CN 2022081084W WO 2022206384 A1 WO2022206384 A1 WO 2022206384A1
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WO
WIPO (PCT)
Prior art keywords
battery
adapter
battery body
segment
piece
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/081084
Other languages
English (en)
French (fr)
Inventor
林鸿凯
卫志达
曾玉祥
王永旺
许德胜
陈龙云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Cosmx Battery Co Ltd
Original Assignee
Zhuhai Cosmx Battery Co Ltd
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 Zhuhai Cosmx Battery Co Ltd filed Critical Zhuhai Cosmx Battery Co Ltd
Publication of WO2022206384A1 publication Critical patent/WO2022206384A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
    • 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
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • 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

Definitions

  • the present application relates to the technical field of batteries, and in particular, to a battery.
  • Lithium-ion button-type secondary rechargeable batteries are referred to as button-type lithium-ion batteries.
  • Button-type lithium-ion batteries are convenient to carry and have high safety. They are more and more used in smart wearable products, such as wireless Bluetooth headsets.
  • the PACK is an indispensable part.
  • the PACK of the battery can be realized by metal contact.
  • the negative adapter is a transition metal sheet that supplies power to the battery on the negative side.
  • the negative adapter is connected to the battery through wires.
  • External electrical equipment connection Generally, the battery adapter plate and the battery body are usually fixed by welding. Due to the angle between the positioning plate and the axis of the adapter plate, welding errors are caused, and it is difficult to ensure that the adapter plate is welded in the battery body. Positioning accuracy affects battery usage.
  • the present application provides a battery, which is used to at least solve the technical problem that it is difficult to guarantee the positioning accuracy of the adapter plate welded in the battery body.
  • the present application provides a battery, comprising: a battery body, one end of the battery body is provided with a first adapter fixing piece, the first adapter fixing piece includes a positioning segment and a first adapter piece, The positioning segment and the first transfer piece are integrally connected to ensure the positioning accuracy of the first transfer piece.
  • the positioning segment and the first adapter sheet are integrally connected, the welding error between the positioning segment and the first adapter sheet can be prevented from affecting the first adapter sheet
  • the positioning accuracy ensures the relative position of the positioning segment and the first adapter piece, and reduces the difficulty of processing the battery.
  • the positioning segment and the first transfer sheet are integrally connected, and the structure is compact, which is beneficial to improve the energy density of the battery.
  • the other end of the battery body is provided with a second adapter fixing piece
  • the second adapter fixing piece includes a welding section and a second adapter piece
  • the welding section and the The second transition piece is integrally connected to ensure the positioning accuracy of the second transition piece.
  • the positioning segment is fixed at one end of the battery body, and both ends of the positioning segment in the length direction extend out of both sides of the battery body, respectively.
  • one end of the positioning segment in the length direction has a protruding end, and the protruding end protrudes from the side surface of the battery body.
  • a connecting segment is connected to the other end of the positioning segment in the length direction, one end of the first transition piece is connected to the connecting segment, and the other end of the first transition piece is connected to the connecting segment. extending away from the side surface of the battery body.
  • the second transfer fixing piece further includes a vertical section, and the welding section and the second transfer piece are connected through the vertical section.
  • one end of the second transfer sheet extends in a direction away from the side surface of the battery body, and the other end of the second transfer sheet is connected to the vertical segment.
  • the battery further includes a first insulating glue and a second insulating glue, the first insulating glue is disposed at one end of the battery body, and the first insulating glue covers the on the positioning segment;
  • the second insulating glue is disposed on the other end of the battery body, and the second insulating glue covers the second transfer fixing sheet.
  • the battery further includes a third insulating glue, the third insulating glue is arranged on the side surface of the battery body, and the third insulating glue is separated between the vertical section and all the between the battery body.
  • the provision of the third insulating glue can avoid short circuit during the use of the battery and improve the safety of use.
  • the battery body includes a case with an opening at one end, a battery cell disposed in the case, and a case cover assembly for encapsulating the battery cell;
  • the welding segment is provided on the casing cover assembly, and the positioning segment is provided on the bottom of the casing.
  • the positioning segment and the first adaptor are integrally connected, the welding error between the positioning segment and the first adaptor can be prevented from affecting the positioning of the first adaptor.
  • the precision is reduced, the welding difficulty of the first transfer fixing piece is reduced, the production and manufacture of the battery is easy to be realized, and the yield of the battery is improved.
  • the positioning segment and the first transfer piece are integrally connected, and the structure is compact, which is beneficial to improve the energy density of the battery.
  • the wearable oxygen inhalation nasal obstruction device provided by the embodiments of the present application can Other technical problems to be solved, other technical features included in the technical solution, and the beneficial effects brought about by these technical features will be described in further detail in the specific embodiments.
  • FIG. 1 is a schematic three-dimensional structure diagram of a battery provided by an embodiment of the present application.
  • FIG. 2 is another three-dimensional schematic diagram of the battery provided by the embodiment of the present application.
  • FIG. 3 is a schematic diagram of a partial three-dimensional structure of a battery provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another partial three-dimensional structure of the battery provided by the embodiment of the present application.
  • FIG. 5 is another partial three-dimensional structural schematic diagram of the battery provided by the embodiment of the present application.
  • FIG. 6 is the top view of FIG. 5 of the battery provided by the embodiment of the present application.
  • FIG. 7 is a cross-sectional view of the A-A section of FIG. 6 of the battery provided by the embodiment of the present application;
  • FIG. 8 is an exploded view of the battery provided by the embodiment of the present application.
  • the negative electrode adapter is a transition metal sheet that supplies power to the outside of the battery body 10 on the negative electrode, and the negative electrode adapter is used as a pin and is connected to external electrical equipment through wires.
  • the negative electrode adapter piece directly leads out the negative electrode nickel piece from one end of the battery body 10, and does not have a positioning structure. Therefore, in the existing battery, when the negative electrode adapter piece is welded on the battery body 10, it is difficult to accurately locate the negative electrode. The position of the nickel sheet affects the positional accuracy of the negative electrode adapter.
  • the present application provides a battery, comprising: a battery body 10 , one end of the battery body 10 is provided with a first adapter fixing piece 50 , and the other end of the battery body 10 is provided with a second adapter fixing plate Sheet 60; the first adapter fixing sheet 50 includes a positioning segment 51 and a first adapter sheet 53, and the positioning segment 51 and the first adapter sheet 53 are integrally connected to prevent the positioning segment 51 and the first adapter sheet 53.
  • the welding error affects the positioning accuracy of the first adapter piece 53 .
  • the first adapter fixing piece 50 is a negative electrode adapter fixing piece
  • the first adapter piece 53 is a negative electrode adapter piece
  • the first adapter piece 53 is a negative electrode nickel piece.
  • the positioning segment 51 and the first adapter sheet 53 are integrally connected, so as to avoid the welding error between the positioning segment 51 and the first adapter sheet 53 from affecting the positioning accuracy of the first adapter sheet 53, The relative positions of the positioning segment 51 and the first transfer piece 53 are ensured, the welding difficulty of the first transfer fixing piece 50 is reduced, the production and manufacture of the battery are facilitated, and the quality of the battery is improved.
  • the positioning segment 51 and the first transfer piece 53 are integrally connected, so that the structure of the battery is compact, which is beneficial to improve the energy density of the battery.
  • the second adapter fixing piece 60 includes a welding segment 61 and a second adapter piece 63 , and the welding segment 61 and the second adapter piece 63 are integrally connected to ensure the positioning accuracy.
  • the second adapter plate 60 is a positive adapter plate
  • the second adapter plate 63 is a positive adapter plate.
  • the second transfer fixing piece 60 is electrically connected to the positive electrode tab of the battery body 10 .
  • the welding section 61 extends from the central position of the end face of the battery body 10 to the edge of the battery body 10 .
  • the part where the welding section 61 contacts the center of the end face of the battery body 10 is the enlarged end 611 .
  • the enlarged end 611 expands the contact area with the end face of the battery body 10 by increasing the width, ensuring that the welding section 61 and the battery body are connected. 10
  • the end faces are fully contacted to avoid false welding, ensure the welding strength, and the welding is convenient and reliable.
  • the positioning segment 51 is fixed at one end of the battery body 10 , and both ends of the positioning segment 51 in the length direction respectively extend out of both sides of the battery body 10 to ensure that the positioning segment 51 It is fully in contact with one end of the battery body 10 to avoid virtual welding, ensure the welding strength, and facilitate and reliable welding.
  • the positioning segment 51 is electrically connected to the negative electrode tab of the battery body 10 .
  • the positioning segment 51 may be a flat structure, and the length of the positioning segment 51 is much larger than the width of the positioning segment 51 .
  • One end in the length direction of the positioning segment 51 has a protruding end 54 , and the protruding end 54 protrudes from the side surface of the battery body 10 .
  • the other end of the positioning segment 51 in the length direction is connected with a connecting segment 52 , one end of the first adapter piece 53 is connected with the connecting segment 52 , and the other end of the first adapter piece 53 extends away from the side of the battery body 10 .
  • the second adapter fixing piece 60 further includes a vertical section 62 , and the welding section 61 and the second adapter piece 63 are connected through the vertical section 62 .
  • the second adapter plate 63 is a positive nickel plate.
  • One end of the second adapter piece 63 extends away from the side surface of the battery body 10 , and the other end of the second adapter piece 63 is connected to the vertical section 62 .
  • the position of the second transfer piece 63 is opposite to that of the first transfer piece 53 .
  • the second transfer sheet 63 is located below the first transfer sheet 53 , and the second transfer sheet 63 and the first transfer sheet 53 are spaced apart from each other.
  • the battery provided by the present application further includes a first insulating glue 20 and a second insulating glue 30 , the first insulating glue 20 is arranged at one end of the battery body 10 , and the first insulating glue 20 covers the positioning On the segment 51 ; the second insulating adhesive 30 is disposed on the other end of the battery body 10 , and the second insulating adhesive 30 covers the second transfer fixing sheet 60 .
  • Both the first insulating adhesive 20 and the second insulating adhesive 30 may be insulating adhesive paper.
  • the first transfer fixing piece 50 can be connected to the battery body 10 by means of laser welding.
  • the positioning segment 51 is connected to one end of the battery body 10 by welding. Therefore, setting the first insulating glue 20 to cover the positioning segment 51 can avoid the occurrence of welding of the first transfer fixing piece 50 . The welding debris is not cleaned up, causing a short circuit during battery use, avoiding safety problems.
  • the second transfer fixing sheet 60 can be connected to the battery body 10 by means of laser welding, and the second insulating glue 30 is arranged to cover the second transfer fixing sheet 60 to avoid welding the second transfer fixing sheet 60 .
  • the welding debris generated when the fixing sheet 60 is transferred causes a short circuit during use of the battery, thereby improving the use safety.
  • the battery provided by the present application further includes a third insulating glue 40 , the third insulating glue 40 is arranged on the side of the battery body 10 , and the third insulating glue 40 is separated between the vertical section 62 and the battery body between 10.
  • the provision of the third insulating glue 40 can avoid short circuit during the use of the battery and improve the safety of use.
  • the third insulating adhesive 40 may be insulating adhesive paper.
  • the battery body 10 includes a case 11 with an opening at one end, a battery cell 12 disposed in the case 11 , and a case cover assembly for encapsulating the battery cell 12 14; the welding segment 61 is arranged on the cover assembly 14, and the positioning segment 51 is arranged at the bottom of the housing 11.
  • the housing 11 has an accommodating cavity 111 , and the battery cells 12 are located in the accommodating cavity 111 .
  • the casing 11 is not limited to be cylindrical, and of course the casing 11 may be cubic.
  • the case cover assembly 14 includes a lower case cover 141 and an upper case cover 142, the lower case cover 141 is disposed on the opening of the case 11, the upper case cover 142 is disposed on the lower case cover 141, and the upper case cover 142 and the lower case cover 141
  • the pp layer 13 is arranged therebetween, a sealing nail 15 is arranged in the center of the upper surface of the upper case cover 142 , the accommodating cavity 111 is also filled with electrolyte, and the battery core 12 is immersed in the electrolyte.
  • the welding section 61 of the second adapter fixing piece 60 may be connected to the upper case cover 142 of the case cover assembly 14 by means of laser welding.
  • the positioning segment 51 can be connected to the bottom of the housing 11 by means of laser welding.
  • the second transfer fixing piece 60 is welded on the top of the battery body 10
  • the first transfer fixing piece 50 is welded on the bottom of the battery body 10 to facilitate welding work.
  • the positioning segment 51 and the first adapter sheet 53 are integrally connected, so as to avoid the welding error between the positioning segment 51 and the first adapter sheet 53 from affecting the positioning of the first adapter sheet 53
  • the accuracy is reduced, the welding difficulty of the first transfer fixing piece 50 is reduced, and the yield of the battery is improved.
  • the structure of the battery can also be made compact, which is beneficial to improve the energy density of the battery.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include one or more of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed”, etc. should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be a mechanical connection or an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, and it can make the internal communication of two elements or the interaction relationship between the two elements.
  • installed may be a fixed connection or a detachable connection, or It can be a mechanical connection or an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, and it can make the internal communication of two elements or the interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请提供一种电池，包括：电池本体，所述电池本体的一端设置有第一转接固定片，所述电池本体的另一端设置有第二转接固定片；所述第一转接固定片包括定位片段和第一转接片，所述定位片段和所述第一转接片一体连接，以确保所述第一转接片的定位精度。本申请提供的一种电池，用以至少解决转接片在电池本体中焊接的定位精度难以保证的技术问题。

Description

一种电池
本申请要求于2021年03月31日提交中国专利局、申请号为202120665368.5、申请名称为“一种电池”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，尤其涉及一种电池。
背景技术
随着智能穿戴产品的应用越来越广泛，人们对于小体积的锂离子扣式二次可充电电池的需求也越来越广。锂离子扣式二次可充电电池简称扣式锂离子电池，扣式锂离子电池便携方便，安全性高，越来越多的应用于智能穿戴产品，比如用于无线蓝牙耳机等。
电池中，PACK是不可或缺的一部分，电池的PACK可以通过金属片接触实现，在纽扣电池中，负极转接片为电池在负极上向外供电的过渡金属片，负极转接片通过导线与外界的用电设备连接。一般的电池转接片与电池本体之间通常采用焊接的方式固定，由于定位片与转接片的轴线之间存在着夹角，引起焊接的误差，难以确保转接片在电池本体中焊接的定位精度，影响电池的使用。
因此，发展一种电池，使其结构紧凑，并且能够确保转接片的定位精度，发展前景广阔。
发明内容
本申请提供一种电池，用以至少解决转接片在电池本体中焊接的定位精度难以保证的技术问题。
为了实现上述目的，本申请提供一种电池，包括：电池本体，所述电池本体的一端设置有第一转接固定片，所述第一转接固定片包括定位片段和第一转接片，所述定位片段和所述第一转接片一体连接，以确保所述第一转接 片的定位精度。
本申请提供的一种电池，由于所述定位片段和所述第一转接片一体连接，因而可以避免所述定位片段和所述第一转接片之间的焊接误差影响第一转接片定位精度，保证了所述定位片段和所述第一转接片的相对位置，降低电池的加工难度。另外，所述定位片段和所述第一转接片一体连接，其结构紧凑，有利于提高电池的能量密度。
在一种可能实施的方式中，所述电池本体的另一端设置有第二转接固定片，所述第二转接固定片包括焊接段和第二转接片，所述焊接段和所述第二转接片一体连接，以确保所述第二转接片的定位精度。
在一种可能实施的方式中，所述定位片段固定在所述电池本体的一端，且所述定位片段的长度方向的两端分别延伸出所述电池本体的两侧。
在一种可能实施的方式中，所述定位片段的长度方向的一端具有突出端，所述突出端伸出所述电池本体的侧面。
在一种可能实施的方式中，所述定位片段的长度方向的另一端连接有连接段，所述第一转接片的一端与所述连接段连接，所述第一转接片的另一端向远离所述电池本体侧面的方向延伸。
在一种可能实施的方式中，所述第二转接固定片还包括竖向段，所述焊接段和第二转接片通过所述竖向段连接。
在一种可能实施的方式中，所述第二转接片的一端向远离所述电池本体侧面的方向延伸，所述第二转接片的另一端与所述竖向段连接。
在一种可能实施的方式中，所述电池还包括第一绝缘胶和第二绝缘胶，所述第一绝缘胶设置在所述电池本体的一端，且所述第一绝缘胶覆盖在所述定位片段上；
所述第二绝缘胶设置在所述电池本体的另一端，且所述第二绝缘胶覆盖在所述第二转接固定片上。
在一种可能实施的方式中，所述电池还包括第三绝缘胶，所述第三绝缘胶设置在所述电池本体的侧面，且所述第三绝缘胶隔在所述竖向段和所述电池本体之间。设置所述第三绝缘胶可避免电池使用过程中发生短路，提高使用的安全性。
在一种可能实施的方式中，所述电池本体包括一端具有开口的壳体、设 置在所述壳体内的电芯、以及封装所述电芯的壳盖组件；
所述焊接段设置在所述壳盖组件上，所述定位片段设置在所述壳体的底部。
本申请提供的电池，由于所述定位片段和所述第一转接片一体连接，因而可以避免所述定位片段和所述第一转接片之间的焊接误差影响第一转接片的定位精度，减少第一转接固定片的焊接难度，易于实现电池的生产制造，提高了电池的良品率。所述定位片段和所述第一转接片一体连接，其结构紧凑，有利于提高电池的能量密度。
除了上面所描述的本申请实施例解决的技术问题、构成技术方案的技术特征以及由这些技术方案的技术特征所带来的有益效果外，本申请实施例提供的可穿戴吸氧鼻塞装置所能解决的其他技术问题、技术方案中包含的其他技术特征以及这些技术特征带来的有益效果，将在具体实施方式中作出进一步详细的说明。
附图说明
为了更清楚地说明本申请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以简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的电池的立体结构示意图；
图2为本申请实施例提供的电池的又一立体结构示意图；
图3为本申请实施例提供的电池的局部立体结构示意图；
图4为本申请实施例提供的电池的又一局部立体结构示意图；
图5为本申请实施例提供的电池的又一局部立体结构示意图；
图6为本申请实施例提供的电池的图5的俯视图；
图7为本申请实施例提供的电池的图6的A-A截面的剖视图；
图8为本申请实施例提供的电池的爆炸图。
附图标记说明：
10-电池本体；
11-壳体；
111-容纳腔；
12-电芯；
13-pp层；
14-壳盖组件；
141-下壳盖；
142-上壳盖；
15-封口钉；
20-第一绝缘胶；
30-第二绝缘胶；
40-第三绝缘胶；
50-第一转接固定片；
51-定位片段；
52-连接段；
53-第一转接片；
54-突出端；
60-第二转接固定片；
61-焊接段；
611-扩大端；
62-竖向段；
63-第二转接片。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请中的附图，对本申请中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在锂离子电池中，负极转接片为电池本体10在负极上向外供电的过渡金属片，负极转接片作为引脚使用，通过导线与外界的用电设备连接。
现有的电池中，负极转接片直接从电池本体10的一端引出负极镍片，不 具备定位结构，因而现有的电池中，在电池本体10上焊接负极转接片时，难以精确定位负极镍片的位置，影响负极转接片的位置精度。
参考图1和图3所示，本申请提供一种电池，包括：电池本体10，电池本体10的一端设置有第一转接固定片50，电池本体10的另一端设置有第二转接固定片60；第一转接固定片50包括定位片段51和第一转接片53，定位片段51和第一转接片53一体连接，以避免定位片段51和第一转接片53之间的焊接误差影响第一转接片53的定位精度。
第一转接固定片50为负极转接固定片，第一转接片53为负极转接片，第一转接片53为负极镍片。
本申请提供的一种电池，定位片段51和第一转接片53一体连接，避免了定位片段51和第一转接片53之间的焊接误差影响到第一转接片53的定位精度，保证了定位片段51和第一转接片53的相对位置，减少第一转接固定片50的焊接难度，易于实现电池的生产制造，有助于提高电池的品质。此外，定位片段51和第一转接片53一体连接，使得电池的结构紧凑，有利于提高电池的能量密度。
参考图2和图4所示，第二转接固定片60包括焊接段61和第二转接片63，焊接段61和第二转接片63一体连接，以确保第二转接片63的定位精度。
第二转接固定片60为正极转接固定片，第二转接片63为正极转接片。
第二转接固定片60与电池本体10的正极极耳电连接。
在一种可能实施的方式中，参考图6所示，焊接段61自电池本体10端面的中心位置向电池本体10的边缘延伸。
参考图6所示，焊接段61与电池本体10端面的中心位置接触的部位为扩大端611，扩大端611通过增加宽度来扩大与电池本体10端面的接触面积，确保了焊接段61与电池本体10端面充分接触，避免产生虚焊，保证焊接强度，焊接方便可靠。
在一种可能实施的方式中，参考图3所示，定位片段51固定在电池本体10的一端，且定位片段51的长度方向的两端分别延伸出电池本体10的两侧，确保定位片段51与电池本体10的一端充分接触，避免产生虚焊，保证焊接强度，焊接方便可靠。
容易理解的是，定位片段51与电池本体10的负极极耳电连接。
定位片段51可以为扁平状结构，定位片段51的长度远大于定位片段51的宽度。
定位片段51的长度方向的一端具有突出端54，突出端54伸出电池本体10的侧面。
定位片段51的长度方向的另一端连接有连接段52，第一转接片53的一端与连接段52连接，第一转接片53的另一端向远离电池本体10侧面的方向延伸。
在一种可能实施的方式中，参考图4所示，第二转接固定片60还包括竖向段62，焊接段61和第二转接片63通过竖向段62连接。第二转接片63为正极镍片。
第二转接片63的一端向远离电池本体10侧面的方向延伸，第二转接片63另一端与竖向段62连接。
第二转接片63与第一转接片53的位置相对。
在一种可能实施的方式中，第二转接片63位于第一转接片53的下方，且第二转接片63和第一转接片53相互间隔。
参考图1和图2所示，本申请提供的电池还包括第一绝缘胶20和第二绝缘胶30，第一绝缘胶20设置在电池本体10的一端，且第一绝缘胶20覆盖在定位片段51上；第二绝缘胶30设置在电池本体10的另一端，且第二绝缘胶30覆盖在第二转接固定片60上。
第一绝缘胶20和第二绝缘胶30都可以为绝缘胶纸。
第一转接固定片50可以采用激光焊接的方式与电池本体10连接。
在一种可能实施的方式中，定位片段51通过焊接的方式连接在电池本体10的一端，因此设置第一绝缘胶20覆盖在定位片段51上，可避免焊接第一转接固定片50时产生的焊接碎屑未清理干净引起电池使用过程中发生短路，避免产生安全问题。
在一种可能实施的方式中，第二转接固定片60可以采用激光焊接的方式与电池本体10连接，设置第二绝缘胶30覆盖在第二转接固定片60上，可避免焊接第二转接固定片60时产生的焊接碎屑引起电池使用过程中发生短路，提高使用安全性。
参考图4和图5所示，本申请提供的电池还包括第三绝缘胶40，第三绝 缘胶40设置在电池本体10的侧面，且第三绝缘胶40隔在竖向段62和电池本体10之间。设置第三绝缘胶40可避免电池使用过程中发生短路，提高使用安全性。
第三绝缘胶40可以为绝缘胶纸。
在一种可能实施的方式中，参考图7和图8所示，电池本体10包括一端具有开口的壳体11、设置在壳体11内的电芯12、以及封装电芯12的壳盖组件14；焊接段61设置在壳盖组件14上，定位片段51设置在壳体11的底部。
壳体11内具有容纳腔111，电芯12位于容纳腔111内。
壳体11不限于呈圆柱状，当然壳体11可以呈立方体状。
壳盖组件14包括下壳盖141和上壳盖142，下壳盖141设置在壳体11的开口上，上壳盖142设置在下壳盖141上，且在上壳盖142和下壳盖141之间设置有pp层13，上壳盖142上表面的中心设置有封口钉15，容纳腔111内还填充有电解液，电芯12浸在电解液中。
第二转接固定片60的焊接段61可以采用激光焊接的方式与壳盖组件14的上壳盖142连接。定位片段51可以采用激光焊接的方式与壳体11的底部连接。
本实施例提供的一种电池，在电池本体10的顶部焊接第二转接固定片60，在电池本体10的底部焊接第一转接固定片50，方便进行焊接工作。
本实施例供的一种电池中，定位片段51和第一转接片53一体连接，避免了定位片段51和第一转接片53之间的焊接误差影响到第一转接片53的定位精度，减少第一转接固定片50的焊接难度，提高了电池的良品率。也能够使得电池的结构紧凑，有利于提高电池的能量密度。
在本申请的描述中，需要理解的是，所使用的术语“中心”、“长度”、“宽度”、“厚度”、“顶端”、“底端”、“上”、“下”、“左”、“右”、“前”、“后”、“竖直”、“水平”、“内”、“外”“轴向”、“周向”等指示方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的位置或原件必须具有特定的方位、以特定的构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第 一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个、三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等应做广义理解，例如可以是固定连接，也可以是可拆卸连接，或成为一体；可以是机械连接，也可以是电连接或者可以互相通讯；可以是直接相连，也可以通过中间媒介间接相连，可以使两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (10)

  1. 一种电池，其特征在于，包括：电池本体(10)，所述电池本体(10)的一端设置有第一转接固定片(50)，所述第一转接固定片(50)包括定位片段(51)和第一转接片(53)，所述定位片段(51)和所述第一转接片(53)一体连接，以确保所述第一转接片(53)的定位精度。
  2. 根据权利要求1所述的电池，其特征在于，所述电池本体(10)的另一端设置有第二转接固定片(60)，所述第二转接固定片(60)包括焊接段(61)和第二转接片(63)，所述焊接段(61)和所述第二转接片(63)一体连接，以确保所述第二转接片(63)的定位精度。
  3. 根据权利要求1-2任一所述的电池，其特征在于，所述定位片段(51)固定在所述电池本体(10)的一端，且所述定位片段(51)的长度方向的两端分别延伸出所述电池本体(10)的两侧。
  4. 根据权利要求1-2任一所述的电池，其特征在于，所述定位片段(51)的长度方向的一端具有突出端(54)，所述突出端(54)伸出所述电池本体(10)的侧面。
  5. 根据权利要求1所述的电池，其特征在于，所述定位片段(51)的长度方向的另一端连接有连接段(52)，所述第一转接片(53)的一端与所述连接段(52)连接，所述第一转接片(53)的另一端向远离所述电池本体(10)侧面的方向延伸。
  6. 根据权利要求2所述的电池，其特征在于，所述第二转接固定片(60)还包括竖向段(62)，所述焊接段(61)和第二转接片(63)通过所述竖向段(62)连接。
  7. 根据权利要求6所述的电池，其特征在于，所述第二转接片(63)的一端向远离所述电池本体(10)侧面的方向延伸，所述第二转接片(63)的另一端与所述竖向段(62)连接。
  8. 根据权利要求2所述的电池，其特征在于，还包括第一绝缘胶(20)和第二绝缘胶(30)，所述第一绝缘胶(20)设置在所述电池本体(10)的一端，且所述第一绝缘胶(20)覆盖在所述定位片段(51)上；
    所述第二绝缘胶(30)设置在所述电池本体(10)的另一端，且所述第 二绝缘胶(30)覆盖在所述第二转接固定片(60)上。
  9. 根据权利要求6所述的电池，其特征在于，还包括第三绝缘胶(40)，所述第三绝缘胶(40)设置在所述电池本体(10)的侧面，且所述第三绝缘胶(40)隔在所述竖向段(62)和所述电池本体(10)之间。
  10. 根据权利要求2所述的电池，其特征在于，所述电池本体(10)包括一端具有开口的壳体(11)、设置在所述壳体(11)内的电芯(12)、以及封装所述电芯(12)的壳盖组件(14)；
    所述焊接段(61)设置在所述壳盖组件(14)上，所述定位片段(51)设置在所述壳体(11)的底部。
PCT/CN2022/081084 2021-03-31 2022-03-16 一种电池 Ceased WO2022206384A1 (zh)

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