WO2022078327A1 - 一种电池镀膜方法以及电池 - Google Patents

一种电池镀膜方法以及电池 Download PDF

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Publication number
WO2022078327A1
WO2022078327A1 PCT/CN2021/123285 CN2021123285W WO2022078327A1 WO 2022078327 A1 WO2022078327 A1 WO 2022078327A1 CN 2021123285 W CN2021123285 W CN 2021123285W WO 2022078327 A1 WO2022078327 A1 WO 2022078327A1
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WO
WIPO (PCT)
Prior art keywords
battery
electrical connection
battery body
connection part
lead
Prior art date
Application number
PCT/CN2021/123285
Other languages
English (en)
French (fr)
Inventor
陈志勇
王东
Original Assignee
广东微电新能源有限公司
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Publication of WO2022078327A1 publication Critical patent/WO2022078327A1/zh

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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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/121—Organic 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • H01M50/141—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against humidity
    • 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
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • H01M50/145—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against corrosion
    • 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 field of battery technology, and more particularly, the present application relates to a battery coating method and a battery.
  • a sealing rubber ring is usually arranged in the battery structure.
  • the sealing rubber ring is a rubber material.
  • certain wear and tear will inevitably occur, and the existing battery structure is prone to corrosion of the casing due to excessive moisture on the surface of the battery, and the waterproof performance and anti-corrosion performance are poor.
  • An object of the present application is to provide a battery coating method and a new battery technical solution to solve the above-mentioned technical problems.
  • a battery coating method comprising:
  • a battery body is provided, the battery body includes a first electrical connection part and a second electrical connection part, an isolation film is provided at the position of the first electrical connection part and the second electrical connection part, and the isolation film is connected to the The first electrical connection part and the second electrical connection part are detachably connected;
  • the separator is removed from the battery body to expose the first electrical connection portion and the second electrical connection portion.
  • the first electrical connection part is a positive terminal fixed on the battery body
  • the second electrical connection part is a negative terminal fixed on the battery body
  • the separator covers the positive terminal and the Negative terminal.
  • the first electrical connection part includes a positive terminal fixed on the battery body and a first lead-out part electrically connected to the positive terminal
  • the second electrical connection part includes a negative terminal fixed on the battery body a second lead-out portion electrically connected to the negative terminal
  • the first lead-out portion and the second lead-out portion are covered with the isolation film.
  • the first lead-out portion is a first wire or a first metal piece
  • the second lead-out portion is a second wire or a second metal piece.
  • the preheating treatment includes: placing the battery body provided with the separator in a first device for preheating, wherein the preheating temperature ranges from 80°C to 120°C, and the preheating time ranges from 5min to 10min. .
  • the material of the film layer of the coating is parylene material, and the thickness of the film layer ranges from 1 ⁇ m to 20 ⁇ m.
  • the battery body is provided with at least one connection window, the isolation film is provided in the connection window, and after the outer surface of the battery body is coated, the isolation film provided in the connection window is passed through. Laser or knife removal to expose the connection window for connection with external devices.
  • a battery body including a first connection part and a second connection part
  • the outer surface of the battery body includes a first area and a second area, the positions of the first electrical connection part and the second electrical connection part are located in the second area, and the first connection located in the second area
  • the first region and the second electrical connection portion are exposed for electrical connection with external devices; the first region is plated with a film layer.
  • the first electrical connection part is a positive terminal fixed on the battery body
  • the second electrical connection part is a negative terminal fixed on the battery body
  • the first electrical connection part includes a positive terminal fixed on the battery body and a first lead-out part electrically connected to the positive terminal
  • the second electrical connection part includes a negative terminal fixed on the battery body a second lead-out portion electrically connected to the negative terminal.
  • the first lead-out portion is a first wire or a first metal piece
  • the second lead-out portion is a second wire or a second metal piece.
  • the film layer material is parylene material, and the film layer thickness ranges from 1 ⁇ m to 20 ⁇ m.
  • the surface of the battery body is coated to improve the waterproof performance and anti-corrosion performance of the battery body; before coating the battery body, the first electrical connection part and the second electrical connection part on the battery body are provided with isolation After the coating of the battery body is completed, the separator is removed from the battery body to expose the first electrical connection part and the second electrical connection part, and then the first electrical connection part and the second electrical connection part can be connected with external equipment. ;
  • the film layer will not be directly coated on the electrical connection part, avoiding the use of cutting or laser removal to remove the film layer formed on the electrical connection part to prevent damage to the electrical connection part. , affecting battery performance.
  • FIG. 1 is a flow chart of the battery coating method of the present application.
  • FIG. 2 is a schematic structural diagram 1 of the battery of the present application.
  • FIG. 3 shows a second structural schematic diagram of the battery of the present application.
  • FIG. 4 is a schematic diagram 3 of the structure of the battery of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • An embodiment of the present application provides a battery coating method, as shown in FIGS. 1-4 , the method includes:
  • S101 Provide a battery body 10, the battery body 10 includes a first electrical connection portion 102a and a second electrical connection portion 102b; disposing an isolation film 101 on the first electrical connection portion 102a and the second electrical connection portion 102b , the isolation film 101 is detachably connected to the first electrical connection portion 102a and the second electrical connection portion 102b;
  • S102 preheating the battery body 10 provided with the separator 101 to evaporate the moisture on the outer surface of the battery body 10;
  • S104 Remove the isolation film 101 from the battery body 10 to expose the first electrical connection portion 102a and the second electrical connection portion 102b.
  • the battery body 10 includes a first electrical connection portion 102a and a second electrical connection portion 102b, wherein the first electrical connection portion 102a and the second electrical connection portion 102b are used for electrical connection with external devices;
  • the isolation film 101 is disposed on the first electrical connection portion 102a and the second electrical connection portion 102b.
  • the isolation film 101 is attached to the first electrical connection portion 102a and the second electrical connection portion 102b.
  • the battery body 10 before coating the battery body 10, the battery body 10 needs to be preheated to evaporate the moisture on the outer surface of the battery body 10.
  • the moisture on the outer surface of the battery body 10 can be reduced to less than 30% without affecting the battery.
  • the overall performance of the body 10 when the battery body 10 is in the coating process, it is easier to form the film layer 103 on the outer surface of the battery body.
  • the film layer 103 is formed on the outer surface of the battery body 10 by chemical vapor deposition, wherein the outer surface of the battery body 10 includes a second area with the isolation film 101 and a first area without the isolation film 101.
  • the film layer 103 is also formed on the separator 101, but since the separator 101 is disposed on the first electrical connection part 102a and the second electrical connection part 102b, the film The layer 103 will not be directly formed on the surface of the first electrical connection part 102a and the surface of the second electrical connection part 102b, the isolation film 101 plays an isolation role for the film layer 103, and at the same time the first electrical connection part 102a and the second electrical connection part 102b play a protective role;
  • the chemical vapor deposition method is specifically: placing the preheated battery in the vacuum coating equipment, introducing the gaseous film material into the vacuum coating equipment, and at a preset temperature, through the gas phase between the gaseous film materials.
  • the chemical reaction forms a solid film layer deposited on the outer surface of the battery body.
  • the battery body 10 is taken out from the vacuum coating equipment, and the isolation films 101 disposed on the first electrical connection portion 102a and the second electrical connection portion 102b are placed in the room temperature environment.
  • the first electrical connection portion 102a and the second electrical connection portion 102b are then removed, and the exposed first electrical connection portion 102a and the second electrical connection portion 102b are used for electrical connection with external devices.
  • an isolation film is provided on the first electrical connection part and the second electrical connection part on the battery body, and the thickness of the isolation film can be relatively thick.
  • the bottom of the battery body is padded by the separator, which is equivalent to the area that needs to be coated.
  • the separator is removed from the battery body to expose the first electrical connection part and the second electrical connection
  • the first electrical connection part and the second electrical connection part can be connected to external equipment; in this example, when coating the battery body, the film layer will not be directly coated on the electrical connection part, avoiding the use of cutting or laser removal.
  • the film layer formed on the electrical connection part is removed to prevent damage to the electrical connection part and affect the performance of the battery.
  • the present application forms a film layer on the battery body, which improves the waterproof performance and anti-corrosion performance of the battery body without affecting the electrical connection with external devices.
  • the first electrical connection part 102 a is a positive terminal fixed on the battery body 101
  • the second electrical connection part 102 b is a negative terminal fixed on the battery body 10
  • the separator 101 covers the positive terminal and the negative terminal.
  • a positive terminal and a negative terminal are fixed on the battery body 10; the positive terminal and the negative terminal are exposed on the outer surface of the battery body 10;
  • a layer of separator 101 is bonded on the positive terminal and the negative terminal.
  • the separator 101 may be a plastic film, separator glue, or the like.
  • a layer of isolation film 101 is first adhered to the outer surface of the battery body 10 , and the position where the isolation film is adhered is the communication position with the external device, and the arrangement position of the positive terminal and the negative terminal can be designed according to the user's requirements. Specifically, the positive electrode terminal and the negative electrode terminal are not coated, and the first electrical connection portion and the second electrical connection portion can be exposed only by cutting the isolation film.
  • the material of the film layer and the isolation film 101 may undergo a physical or chemical reaction, and the film layer 103 is formed on the isolation film 101, so that the color of the film layer where the isolation film 101 is located is the same as the color of the area where the isolation film 101 is not provided.
  • the color of the film layer is different, and the separator 101 can be removed from the battery body 10 by the difference of the color area, so as to expose the positive terminal and the negative terminal.
  • the excess coating can be removed, so that the thickness of the film layer on the outer surface of the battery body is basically the same;
  • the excess film layer can be removed by means of laser cutting/knife cutting.
  • the outer shell of the battery body is a steel shell, and it is difficult for moisture to pass through the exposed area of the positive terminal and the negative terminal to enter the interior of the battery body through the surface of the steel shell. Meanwhile, the unexposed part is coated on the surface of the steel shell to make the battery body Has good waterproof effect.
  • the battery coating method of this embodiment the battery is immersed in the test environment (3% salt water) for more than 2 hours without affecting the waterproof performance and anti-corrosion performance of the battery.
  • the first electrical connection part 102a includes a positive terminal 1021a fixed on the battery body 10 and a first lead-out part 1022a electrically connected to the positive terminal 1021a
  • the second electrical connection The connection portion 102b includes a negative electrode terminal 1021b fixed on the battery body 10 and a second lead-out portion 1022b electrically connected to the negative electrode terminal 1021b;
  • the first lead-out portion 1022 a and the second lead-out portion 1022 b are covered with the separator 101 , and the positive electrode terminal 1021 a and the negative electrode terminal 1021 b are covered by the film layer 103 .
  • a first lead-out portion 1022a is drawn out from the positive terminal 1021a, the positive terminal 1021a is electrically connected with the first lead-out portion 1022a, and the other end of the first lead-out portion 1022a is used for electrical connection with external equipment;
  • a second lead-out portion is drawn out from the negative terminal 1021b.
  • the lead-out portion 1022b, the negative terminal 1021b is electrically connected with the second lead-out portion 1022b, and the other end of the second lead-out portion 1022b is used for electrical connection with external equipment;
  • the lead-out portion is used as the lead-out end of the positive and negative terminals.
  • the outer surface of the first lead-out portion 1022a is covered with a first separator 101a
  • the outer surface of the second lead-out portion 1022b is covered with a second separator.
  • 101b for example, the first isolation film 101a and the second isolation film 101b may be insulating paper or the like;
  • the film layer 103 will not be directly formed on the first lead-out portion 1022a and the second lead-out portion 1022b when coating the battery in this example.
  • the film layer 103 will be formed on the surface of the first isolation film 101a and the second isolation film 101b; after coating the battery, the first isolation film 101a and the second isolation film 101b from the first lead-out portion 1022a and the second isolation film The second lead-out portion 1022b is removed. In this example, the step of removing the film layer can be reduced.
  • the positive electrode terminal and the negative electrode terminal can be covered by the film layer, so that the battery body 10 is formed on the The film layer has more integrity.
  • the battery coating method of this embodiment the battery is immersed in the test environment (3% salt water) for more than 2 hours without affecting the waterproof performance and anti-corrosion performance of the battery.
  • the first lead-out portion 1022a is a first wire or a first metal piece
  • the second lead-out portion 1022b is a second wire or a second metal piece.
  • This example improves the integrity of the film layer on the battery body 10 without affecting the performance of the battery and the connection between the battery and external devices.
  • the preheating treatment includes: placing the battery body provided with the separator 101 in a first device for preheating, wherein the preheating temperature ranges from 80°C to 120°C, and the preheating time ranges from 5min to 120°C. 10min.
  • the preheating temperature ranges from 80°C to 120°C
  • the preheating time ranges from 5min to 120°C. 10min.
  • the outer surface of the battery body is made more dry, and when the outer surface of the battery body is coated, the film layer 103 is more attached to the The battery body is used to prevent the film layer 103 from falling off the battery body.
  • the material of the film layer of the coating is parylene material, and the thickness of the film layer ranges from 1 ⁇ m to 20 ⁇ m.
  • the film layer formed by Parylene can be applied to each surface of the battery body, and the surface shape is not limited.
  • the film layer formed by Parylene can be deposited on sharp edges and cracks to avoid the battery.
  • a certain area of the outer surface of the main body is not coated with a film layer, which affects the waterproof performance and anti-corrosion performance of the battery main body.
  • the battery body 101 is provided with at least one connection window 104, and the isolation film 101 is provided in the connection window 104, and after the outer surface of the battery body 10 is coated, it will be provided in the connection window 104
  • the isolation film 101 is removed by a laser or a knife, so as to expose the connection window 101 to connect with external devices.
  • connection window 104 needs to be provided for bonding and fixing with the external device.
  • the specific location and quantity of the connection window 104 can be set according to user requirements.
  • part of the film layer formed on the outer surface of the battery body 10 is directly cut off by a laser or a knife to form the connection window.
  • part of the film layer can be removed by cutting such as laser cutting or knife cutting.
  • the battery prepared by adopting any one of the battery coating methods described above.
  • the battery includes:
  • the battery body 10 includes a first connecting portion 102a and a second connecting portion 102b;
  • the outer surface of the battery body 10 includes a first area and a second area.
  • the first electrical connection part 102a and the second electrical connection part 102b are arranged in the second area, and are located on the second area of the second area.
  • An electrical connection portion 102a and the second electrical connection portion 102b are exposed for electrical connection with external devices; the first region is coated with a film layer 103 .
  • a separator is provided on the first electrical connection part and the second electrical connection part on the battery body. After the coating of the battery body is completed, the separator is removed from the battery body to expose the first electrical connection part and the second electrical connection part.
  • the connecting part, and then the first electrical connecting part and the second electrical connecting part can be connected with external equipment; in this example, when coating the battery body, the film will not be directly coated on the electrical connecting part, avoiding cutting or laser removal, etc. In this way, the film layer formed on the electrical connection part is removed to prevent damage to the electrical connection part and affect the battery performance.
  • the present application forms a film layer on the battery body, which improves the waterproof performance and anti-corrosion performance of the battery body without affecting the electrical connection with external devices.
  • the first electrical connection part 102 a is a positive terminal fixed on the battery body 10
  • the second electrical connection part 102 b is a negative terminal fixed on the battery body 10 .
  • the positive terminal and the negative terminal are arranged in the second area, the positive terminal and the negative terminal will not be covered by the film layer 103, and the positive terminal and the negative terminal are used for electrical connection with external equipment; the first terminal of the battery body The area is covered by the membrane layer 103 to improve the waterproof performance and the anti-corrosion performance of the battery body 10 .
  • the first electrical connection portion 102a includes a positive terminal 1021a fixed on the battery body 10 and a first lead-out portion 1022a electrically connected to the positive terminal 1021a
  • the second electrical connection 102b includes a the negative terminal 1021b on the battery body 10 and the second lead-out portion 1022b electrically connected to the negative terminal 1021b;
  • the first lead-out portion 1022a and the second lead-out portion 1022b are covered with the separator 101 ; the positive electrode terminal 1021a and the negative electrode terminal are covered by the film layer 103 .
  • the end of the positive terminal 1021a connected to the external device is drawn out through the first lead-out portion 1022a
  • the end of the negative terminal 1021b connected to the external device is drawn out through the second lead-out portion 1022b
  • one end of the first lead-out portion 1022a is connected to the positive terminal
  • the other end is used for connecting with external equipment
  • one end of the second lead-out portion 1022b is connected with the negative terminal
  • the other end is used for connecting with external equipment
  • the first lead-out portion 1022a and the second lead-out portion 1022b are disposed in the second region, the first lead-out portion 1022a and the second lead-out portion 1022b will not be covered by the film layer 103, and the first lead-out portion 1022a and the second lead-out portion 1022b are not covered by the film layer 103.
  • the second lead-out portion 1022b is used to achieve electrical connection with external equipment; the first area of the battery body includes the area where the positive terminal and the negative terminal are located, and the first area of the battery body is covered by the film layer 103, which improves the waterproof performance and the waterproof performance of the battery body 10. Corrosive properties.
  • the first lead-out portion 1022a is a first wire or a first metal piece
  • the second lead-out portion 1022b is a second wire or a second metal piece.
  • This example improves the integrity of the film layer on the battery body 10 without affecting the performance of the battery and the connection between the battery and external devices.
  • the material of the film layer is parylene material, and the thickness of the film layer of the coating film ranges from 1 ⁇ m to 20 ⁇ m.
  • the film layer formed by Parylene can be applied to each surface of the battery body, and the surface shape is not limited.
  • the film layer formed by Parylene can be deposited on sharp edges and cracks to avoid the battery.
  • a certain area of the outer surface of the main body is not coated with a film layer, which affects the waterproof performance and anti-corrosion performance of the battery main body.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

本申请实施例公开一种电池镀膜方法以及电池。所述方法包括：提供电池本体，所述电池本体包括第一电连接部和第二电连接部，在所述第一电连接部和所述第二电连接部上设置隔离膜；将设置有所述隔离膜的电池本体预热处理以蒸发电池本体的外表面水分；将预热处理过的电池本体采用化学气相沉积方式在所述电池本体的外表面形成膜层；将所述隔离膜从所述电池本体去除，以露出所述第一电连接部和所述第二电连接部。

Description

一种电池镀膜方法以及电池
本申请要求于2020年10月13日提交中国专利局，申请号为202011092860.4，申请名称为“一种电池镀膜方法以及电池”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，更具体地，本申请涉及一种电池镀膜方法及电池。
背景技术
汗液、湿气是对电池最普遍且最具破坏性的主要因素。过多的湿气和汗液的盐份会导致电池的外壳腐蚀、甚至电池正负极之间造成短路，从而导致电池失效，甚至爆炸等情况。
现有的电池结构，为了提高电池结构的整体密封防水性能，通常会在电池结构内设置一密封胶圈，但是由于密封胶圈的密封性能有限，且介于密封胶圈是橡胶材质的材料，在使用过程中无法避免地会发生一定的磨损，而且现有的电池结构容易在电池表面因水分过多导致外壳腐蚀，防水性能、防腐蚀性能较差。
发明内容
本申请的一个目的是提供一种电池镀膜方法以及电池新的技术方案，以解决上述存在的技术问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，提供一种电池镀膜方法，所述方法包括：
提供电池本体，所述电池本体包括第一电连接部和第二电连接部，在 所述第一电连接部和所述第二电连接部所在位置设置隔离膜，所述隔离膜与所述第一电连接部和所述第二电连接部可拆卸连接；
将设置有所述隔离膜的电池本体预热处理以蒸发电池本体的外表面水分；
将预热处理过的电池本体采用化学气相沉积方式在所述电池本体的外表面形成膜层；
将所述隔离膜从所述电池本体去除，以露出所述第一电连接部和所述第二电连接部。
可选地，所述第一电连接部为固定在电池本体上的正极端子，所述第二电连接部为固定在电池本体上的负极端子，所述隔离膜覆盖所述正极端子和所述负极端子。
可选地，所述第一电连接部包括固定在电池本体上的正极端子和与所述正极端子电连接的第一引出部，所述第二电连接部包括固定在电池本体上的负极端子和所述负极端子电连接的第二引出部；
所述第一引出部和所述第二引出部包覆有所述隔离膜。
可选地，所述第一引出部为第一导线或者第一金属件；
所述第二引出部为第二导线或者第二金属件。
可选地，所述预热处理包括：将设置有所述隔离膜的电池本体放置在第一设备进行预热，其中预热温度范围为80℃-120℃，预热时间范围为5min-10min。
可选地，其中镀膜的膜层材料为派瑞林材料，膜层厚度范围为1μm-20μm。
可选地，所述电池本体设置有至少一个连接窗口，在所述连接窗口设置所述隔离膜，在所述电池本体的外表面镀膜之后，将设置在所述连接窗口的所述隔离膜通过激光或者刻刀去除，以露出所述连接窗口用于与外部设备连接。
根据本申请第二方面，提供一种采用上述任一项所述电池镀膜方法制 备的电池，所述电池包括：
电池本体，包括第一连接部和第二连接部；
所述电池本体的外表面包括第一区域和第二区域，所述第一电连接部和所述第二电连接部所在位置处于所述第二区域，位于所述第二区域的第一连接部和所述第二电连接部被露出，用于与外部设备电连接；所述第一区域镀有膜层。
可选地，所述第一电连接部为固定在电池本体上的正极端子，所述第二电连接部为固定在电池本体上的负极端子。
可选地，所述第一电连接部包括固定在电池本体上的正极端子和与所述正极端子电连接的第一引出部，所述第二电连接部包括固定在电池本体上的负极端子和所述负极端子电连接的第二引出部。
可选地，所述第一引出部为第一导线或者第一金属件；
所述第二引出部为第二导线或者第二金属件。
可选地，所述膜层材料为派瑞林材料，膜层厚度范围为1μm-20μm。
在本申请的实施例中，在电池本体表面镀膜以提高电池本体的防水性能和防腐蚀性能；在对电池本体镀膜之前，在电池本体上的第一电连接部和第二电连接部设置隔离膜，完成对电池本体的镀膜之后，将隔离膜从电池本体上去除，以露出第一电连接部和第二电连接部，进而第一电连接部和第二电连接部能够与外部设备连接；本例子在对电池本体镀膜时，膜层不会直接涂覆在电连接部上，避免采用切割或者激光去除等方式将形成在电连接部上的膜层去除，防止对电连接部造成破坏，影响电池性能。
附图说明
图1所示为本申请电池镀膜方法的流程图。
图2所示为本申请电池的结构示意图一。
图3所示为本申请电池的结构示意图二。
图4所示为本申请电池的结构示意图三。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例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。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例对本申请实施例提供的电池镀膜方法以及电池进行详细地说明。
本申请实施例提供了一种电池镀膜方法，参照图1-图4所示，所述方法包括：
S101:提供电池本体10，所述电池本体10包括第一电连接部102a和第二电连接部102b；在所述第一电连接部102a和所述第二电连接部102b上设置隔离膜101，所述隔离膜101与所述第一电连接部102a和所述第二电连接部102b可拆卸连接；
S102:将设置有所述隔离膜101的电池本体10预热处理以蒸发电池本体10的外表面水分；
S103:将预热处理过的电池本体10采用化学气相沉积方式在所述电池本体10的外表面形成膜层103；
S104:将所述隔离膜101从所述电池本体10去除，以露出所述第一电连接部102a和所述第二电连接部102b。
例如电池本体10包括第一电连接部102a和第二电连接部102b，其中第一电连接部102a和第二电连接部102b用于与外部设备实现电连接；
在第一电连接部102a和第二电连接部102b上设置隔离膜101，例如在第一电连接部102a和第二电连接部102b上贴附设置隔离膜101，当电池本体10在镀膜过程中，避免膜层103直接形成在第一电连接部102a和第二电连接部102b上；
本例子在对电池本体10进行镀膜之前，需要对电池本体10进行预热处理以蒸发电池本体10的外表面水分，例如可以将电池本体10的外表面水分降低至30％以下，在不影响电池本体10整体性能的情况下，当电池本体10在镀膜过程中，更容易将膜层103形成在电池本体的外表面。
采用化学气相沉积方式在电池本体10的外表面形成膜层103，其中电池本体10的外表面包括设置有隔离膜101的第二区域，和未设置有隔离膜101的第一区域，采用化学气相沉积方式在电池本体10的外表面形成膜层103时，也会在隔离膜101上形成膜层103，但是由于隔离膜101设置在第一电连接部102a和第二电连接部102b上，膜层103不会直接形成在第一电连接部102a表面和第二电连接部102b表面，隔离膜101对膜层103起到隔离作用，同时对第一电连接部102a和第二电连接部102b起到保护作用；
本例子采用化学气相沉积方式具体为：将预热处理过的电池放置在真空镀膜设备中，将气态膜层材料引入真空镀膜设备中，在预设温度下，通过气态膜层材料之间的气相化学反应而形成固体膜层沉积在电池本体的外表面。
在电池本体10的外表面镀上膜层103之后，将电池本体10从真空镀膜设备中取出，在室温环境下，将设置在第一电连接部102a和第二电连接部102b的隔离膜101去除，进而将第一电连接部102a和第二电连接部102b露出，被露出的第一电连接部102a和第二电连接部102b用于与外部设备实现电连接。
本申请实施例中对电池本体镀膜之前，在电池本体上的第一电连接部和第二电连接部设置隔离膜，隔离膜的厚度可以较厚，设置有隔离膜的电池本体在放入真空镀膜设备时，电池本体的底部通过隔离膜被垫起来，相当于需要镀膜区域被悬空设置，在对电池本体镀膜时，电池本体的底部电池被垫起来，从而可更好地对电池底部进行镀膜，使得电池本体的底部可以被充分镀膜，提高电池本体底部膜层的均匀度；完成对电池本体的镀膜之后，将隔离膜从电池本体上去除，以露出第一电连接部和第二电连接部，进而第一电连接部和第二电连接部能够与外部设备连接；本例子在对电池本体镀膜时，膜层不会直接涂覆在电连接部上，避免采用切割或者激光去除等方式将形成在电连接部上的膜层去除，防止对电连接部造成破坏，影响电池性能。
另一方面，本申请在电池本体上形成膜层，在不影响与外部设备电连接情况下，提高了电池本体的防水性能和防腐蚀性能。
可选地，参照图2-图3所示，所述第一电连接部102a为固定在电池本体101上的正极端子，所述第二电连接部102b为固定在电池本体10上的负极端子，所述隔离膜101覆盖所述正极端子和所述负极端子。
例如，电池本体10上固定设置有正极端子和负极端子；所述正极端子和负极端子外露在电池本体10的外表面；
在正极端子和负极端子上粘接一层隔离膜101，例如所述隔离膜101可以是塑料膜，隔离胶等。
本例子在电池本体10的外表面先粘上一层隔离膜101，其中粘有隔离膜的位置为与外部设备连通位置，其中正极端子和负极端子设置位置可根据用户的要求进行设计。具体地，该正极端子和负极端子未被镀膜，只需通过切除隔离膜即可露出第一电连接部和第二电连接部。例如在对电池本体镀膜时，膜层材料与隔离膜101可以发生物理或者化学反应，膜层103形成在隔离膜101上，使得隔离膜101所在位置的膜层颜色与未设置隔离膜101区域的膜层颜色不同，可通过颜色区域的不同，进而将隔离膜101 从电池本体10上去除，以露出正极端子和负极端子。
可选地，为了提高电池本体外观的美观度，在不影响电池性能情况下，可以去除多余镀膜，使得电池本体的外表面的膜层厚度基本一致等；
例如可以采用激光切割/刻刀切割等方式切除多余的膜层。
本实施例中，电池本体的外壳为钢壳，水分难以通过正极端子和负极端子外露区域进而穿过钢壳表面进入电池本体内部，同时，未露出的部分通过在钢壳表面镀膜，使得电池本体具备良好的防水效果。采用本实施例的电池镀膜方法，电池在在测试环境(3％盐水)中浸泡2小时以上不影响电池的防水性能和防腐蚀性能。
可选地，参照图4所示，所述第一电连接部102a包括固定在电池本体10上的正极端子1021a和与所述正极端子1021a电连接的第一引出部1022a，所述第二电连接部102b包括固定在电池本体10上的负极端子1021b和所述负极端子1021b电连接的第二引出部1022b；
所述第一引出部1022a和所述第二引出部1022b包覆有所述隔离膜101，所述正极端子1021a和负极端子1021b被所述膜层103覆盖。
本例子在正极端子1021a引出有第一引出部1022a，正极端子1021a与第一引出部1022a电连接，第一引出部1022a的另一端用于与外部设备电连接；在负极端子1021b引出有第二引出部1022b，负极端子1021b与第二引出部1022b电连接，第二引出部1022b的另一端用于与外部设备电连接；
即本例子引出部作为正负极端子的引出端，在对电池镀膜之前，在第一引出部1022a外表面包覆第一隔离膜101a，在第二引出部1022b外表面包覆第二隔离膜101b，例如第一隔离膜101a和第二隔离膜101b可以是绝缘纸等；
因此由于第一引出部1022a和第二引出部1022b外表面均设置有隔离膜101，本例子在对电池镀膜时，膜层103不会直接形成在第一引出部1022a和第二引出部1022b的外表面，但是膜层103会形成在第一隔离膜101a和 第二隔离膜101b的表面；完成对电池镀膜之后，将第一隔离膜101a和第二隔离膜101b从第一引出部1022a和第二引出部1022b去除，本例子可减少进行切除膜层的步骤，同时，本例子由于在正极端子和负极端子上设置有引出部，正极端子和负极端子可以被膜层覆盖，使得电池本体10上形成的膜层更具有完整性。采用本实施例的电池镀膜方法，电池在在测试环境(3％盐水)中浸泡2小时以上不影响电池的防水性能和防腐蚀性能。
可选地，所述第一引出部1022a为第一导线或者第一金属件；
所述第二引出部1022b为第二导线或者第二金属件。
本例子在不影响电池性能和电池与外部设备连接的情况下，提高了电池本体10上膜层的完整性。
可选地，所述预热处理包括：将设置有所述隔离膜101的电池本体放置在第一设备进行预热，其中预热温度范围为80℃-120℃，预热时间范围为5min-10min。在此预热温度和预热时间范围内，在不影响电池本体原本性能情况下，使得电池本体的外表面更加干燥，在对电池本体的外表面进行镀膜时，使得膜层103更加贴附于电池本体，避免膜层103从电池本体上脱落情况。
可选地，其中镀膜的膜层材料为派瑞林材料，膜层厚度范围为1μm-20μm。其中派瑞林材料(Parylene)形成的膜层能够涂敷到电池本体的各个表面，而且对表面形状没有限定，派瑞林形成的膜层可以沉积到包括尖锐的棱边，裂缝里，避免电池本体的外表面的某个区域未涂覆膜层，影响电池本体的防水性能和防腐蚀性能。
可选地，所述电池本体101设置有至少一个连接窗口104，在所述连接窗口104设置所述隔离膜101，在所述电池本体10的外表面镀膜之后，将设置在所述连接窗口104的所述隔离膜101通过激光或者刻刀去除，以露出所述连接窗口101与外部设备连接。
例如由于在电池本体的外表面镀膜后，电池难以通过膜层粘接在外部设备上，因此需要设置连接窗口104用于与外部设备粘接固定。其中连接 窗口104的具体位置和数量可根据用户需求设置。
或者直接将形成在电池本体10的外表面的部分膜层通过激光或者刻刀切除，以形成所述连接窗口。例如可以采用激光切割或刻刀切割方式等切除将部分膜层去除。
根据本申请第二方面，提供一种采用上述任一项所述电池镀膜方法制备的电池，参照图3和图4所示，所述电池包括：
电池本体10，包括第一连接部102a和第二连接部102b；
所述电池本体10的外表面包括第一区域和第二区域，所述第一电连接部102a和所述第二电连接部102b设置在所述第二区域，位于所述第二区域的第一电连接部102a和所述第二电连接部102b被露出，以用于与外部设备电连接；所述第一区域镀有膜层103。
本例子在电池本体上的第一电连接部和第二电连接部设置隔离膜，完成对电池本体的镀膜之后，将隔离膜从电池本体上去除，以露出第一电连接部和第二电连接部，进而第一电连接部和第二电连接部能够与外部设备连接；本例子在对电池本体镀膜时，膜层不会直接涂覆在电连接部上，避免采用切割或者激光去除等方式将形成在电连接部上的膜层去除，防止对电连接部造成破坏，影响电池性能。
另一方面，本申请在电池本体上形成膜层，在不影响与外部设备电连接情况下，提高了电池本体的防水性能和防腐蚀性能。
可选地，参照图3所示，所述第一电连接部102a为固定在电池本体10上的正极端子，所述第二电连接部102b为固定在电池本体10上的负极端子。
本例子正极端子和负极端子设置在所述第二区域，正极端子和负极端子不会被所述膜层103所覆盖，正极端子和负极端子用于与外部设备实现电连接；电池本体的第一区域被膜层103所覆盖，提高电池本体10的防水性能和防腐蚀性能。
可选地，所述第一电连接部102a包括固定在电池本体10上的正极端 子1021a和与所述正极端子1021a电连接的第一引出部1022a，所述第二电连接部102b包括固定在电池本体10上的负极端子1021b和所述负极端子1021b电连接的第二引出部1022b；
所述第一引出部1022a和所述第二引出部1022b包覆有所述隔离膜101；所述正极端子1021a和负极端子被所述膜层103覆盖。
本例子通过第一引出部1022a将正极端子1021a与外部设备连接的端部引出，通过第二引出部1022b将负极端子1021b与外部设备连接的端部引出，第一引出部1022a一端与正极端子连接，另一端用于与外部设备连接，第二引出部1022b一端与负极端子连接，另一端用于与外部设备连接；
本例子第一引出部1022a和第二引出部1022b设置在所述第二区域，第一引出部1022a和第二引出部1022b不会被所述膜层103所覆盖，第一引出部1022a和第二引出部1022b用于与外部设备实现电连接；电池本体的第一区域包括正极端子和负极端子所处区域，电池本体的第一区域被膜层103所覆盖，提高电池本体10的防水性能和防腐蚀性能。
可选地，所述第一引出部1022a为第一导线或者第一金属件；
所述第二引出部1022b为第二导线或者第二金属件。
本例子在不影响电池性能和电池与外部设备连接的情况下，提高了电池本体10上膜层的完整性。
可选地，所述膜层材料为派瑞林材料，镀膜的膜层厚度范围为1μm-20μm。其中派瑞林材料(Parylene)形成的膜层能够涂敷到电池本体的各个表面，而且对表面形状没有限定，派瑞林形成的膜层可以沉积到包括尖锐的棱边，裂缝里，避免电池本体的外表面的某个区域未涂覆膜层，影响电池本体的防水性能和防腐蚀性能。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更 多限制的情况下，由语句“包括一个......”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (12)

  1. 一种电池镀膜方法，其特征在于，所述方法包括：
    提供电池本体，所述电池本体包括第一电连接部和第二电连接部，在所述第一电连接部和所述第二电连接部设置隔离膜，所述隔离膜与所述第一电连接部和所述第二电连接部可拆卸连接；
    将设置有所述隔离膜的电池本体预热处理以蒸发电池本体的外表面水分；
    将预热处理过的电池本体采用化学气相沉积方式在所述电池本体的外表面形成膜层；
    将所述隔离膜从所述电池本体去除，以露出所述第一电连接部和所述第二电连接部。
  2. 根据权利要求1所述电池镀膜方法，其特征在于，所述第一电连接部为固定在电池本体上的正极端子，所述第二电连接部为固定在电池本体上的负极端子，所述隔离膜覆盖所述正极端子和所述负极端子。
  3. 根据权利要求1所述电池镀膜方法，其特征在于，所述第一电连接部包括固定在电池本体上的正极端子和与所述正极端子电连接的第一引出部，所述第二电连接部包括固定在电池本体上的负极端子和所述负极端子电连接的第二引出部；
    所述第一引出部和所述第二引出部包覆有所述隔离膜，所述正极端子和负极端子被所述膜层覆盖。
  4. 根据权利要求3所述电池镀膜方法，其特征在于，所述第一引出部为第一导线或者第一金属件；
    所述第二引出部为第二导线或者第二金属件。
  5. 根据权利要求1所述电池镀膜方法，其特征在于，所述预热处理包括：将设置有所述隔离膜的电池本体放置在第一设备进行预热，其中预热温度范围为80℃-120℃，预热时间范围为5min-10min。
  6. 根据权利要求1所述电池镀膜方法，其特征在于，其中镀膜的膜层材料为派瑞林材料，膜层厚度范围为1μm-20μm。
  7. 根据权利要求1所述电池镀膜方法，其特征在于，所述电池本体形成有至少一个连接窗口，在所述连接窗口设置所述隔离膜，在所述电池本体的外表面镀膜之后，将设置在所述连接窗口的所述隔离膜通过激光或者刻刀去除，以露出所述连接窗口与外部设备连接。
  8. 一种采用权利要求1-7任一项所述电池镀膜方法制备的电池，其特征在于，所述电池包括：
    电池本体，包括第一连接部和第二连接部；
    所述电池本体的外表面包括第一区域和第二区域，所述第一电连接部和所述第二电连接部处于所述第二区域，位于所述第二区域的第一连接部和所述第二电连接部被露出，用于与外部设备电连接；所述电池本体的第一区域镀有膜层。
  9. 根据权利要求8所述电池，其特征在于，所述第一电连接部为固定在电池本体上的正极端子，所述第二电连接部为固定在电池本体上的负极端子。
  10. 根据权利要求8所述电池，其特征在于，所述第一电连接部包括固定在电池本体上的正极端子和与所述正极端子电连接的第一引出部，所述第二电连接部包括固定在电池本体上的负极端子和所述负极端子电连接 的第二引出部。
  11. 根据权利要求10所述电池，其特征在于，所述第一引出部为第一导线或者第一金属件；
    所述第二引出部为第二导线或者第二金属件。
  12. 根据权利要求8所述电池，其特征在于，所述膜层材料为派瑞林材料，膜层厚度范围为1μm-20μm。
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