WO2022067712A1 - 液态电池及具有所述液态电池的电子装置 - Google Patents

液态电池及具有所述液态电池的电子装置 Download PDF

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Publication number
WO2022067712A1
WO2022067712A1 PCT/CN2020/119521 CN2020119521W WO2022067712A1 WO 2022067712 A1 WO2022067712 A1 WO 2022067712A1 CN 2020119521 W CN2020119521 W CN 2020119521W WO 2022067712 A1 WO2022067712 A1 WO 2022067712A1
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WO
WIPO (PCT)
Prior art keywords
casing
tab
edge
current collector
liquid battery
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Application number
PCT/CN2020/119521
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English (en)
French (fr)
Inventor
严坤
丁宇
盛阳平
Original Assignee
宁德新能源科技有限公司
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Filing date
Publication date
Application filed by 宁德新能源科技有限公司 filed Critical 宁德新能源科技有限公司
Priority to CN202080020323.0A priority Critical patent/CN113632283B/zh
Priority to EP20955737.0A priority patent/EP4207425A4/en
Priority to PCT/CN2020/119521 priority patent/WO2022067712A1/zh
Publication of WO2022067712A1 publication Critical patent/WO2022067712A1/zh
Priority to US18/127,769 priority patent/US20230231107A1/en

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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/368—Liquid depolarisers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • 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
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H01M50/136—Flexibility or foldability
    • 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
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463—Separators, membranes or diaphragms characterised by their 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
    • H01M50/474—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—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
    • 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
    • H01M50/557—Plate-shaped terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/023—Gel electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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 present application relates to the field of electrochemistry, and in particular, to a liquid battery and an electronic device having the liquid battery.
  • Lithium batteries are widely used in various electronic devices due to their advantages of high energy density, long cycle life, and environmental friendliness.
  • the battery needs to have a certain Flexible.
  • the electrode assemblies in current batteries are solid. If such batteries are applied to flexible electronic products, it is usually necessary to sacrifice energy density (for example, reducing the thickness of the battery in the thickness direction, etc.) to ensure that the flexibility of the battery can be applied to flexible electronic products.
  • a liquid battery comprising a casing, the casing enclosing an accommodation space, the liquid battery further comprising:
  • an isolation film which is arranged in the accommodation space and divides the accommodation space into a first cavity and a second cavity;
  • the first slurry and the first current collector are accommodated in the first cavity;
  • the second slurry and the second current collector are accommodated in the second cavity;
  • a second tab having a polarity different from that of the first tab is electrically connected to the second current collector and exposed to the casing.
  • both ends of the casing are sealed to form a first edge and a second edge, and both the first tab and the second tab are formed by the inside of the first edge or the second edge.
  • the two sealing edges extend from the inside, and the isolation film is arranged between the first tab and the second tab.
  • both ends of the casing are sealed to form a first edge and a second edge
  • the first tab extends from the first edge
  • the second tab is formed by the The second edge extends out
  • the isolation film is arranged between the first tab and the second tab
  • the isolation film includes a first end and a second end facing away from the first end, the first end is disposed in the first edge, and the second end is disposed in the first end. Inside the second edge.
  • the casing includes a first casing and a second casing, the first casing is connected to the second casing to form the receiving space, and the isolation membrane is disposed on the first casing between the housing and the second housing, the first housing and the isolation membrane together form the first cavity, and the second housing and the isolation membrane together form the second cavity .
  • the first current collector is connected to the surface of the first casing facing the isolation diaphragm
  • the second current collector is connected to the surface of the second casing facing the isolation diaphragm
  • the first tab is welded to the first current collector, and the second tab is welded to the second current collector.
  • the first slurry is in a liquid or cast state
  • the second slurry is in a liquid or cast state
  • the liquid battery further includes an insulating member, and the insulating member is sealed in the first sealing edge, so that a part of the first tab and the first electrode located in the first sealing edge
  • the edge seal is electrically insulated, and the part of the second tab located in the first edge seal is electrically insulated from the first edge seal.
  • An electronic device comprising the liquid battery according to any one of the above.
  • the liquid electrode assembly composed of the first slurry and the first current collector, the separator, and the second slurry and the second current collector together replaces the solid electrode assembly in the traditional battery (The solid-state electrode assembly is formed by winding or laminating the first pole piece, the separator and the second pole piece), so that the liquid battery not only has the same or even higher energy density of the traditional battery, but also has three-dimensional Full flexibility in direction.
  • FIG. 1 is a schematic diagram of a battery according to an embodiment of the present application.
  • Fig. 2 is a schematic partial cross-sectional view of the first tab, the second tab and the insulating member shown in Fig. 1 from another viewing angle.
  • FIG. 3 is a schematic diagram of a part of the structure of the battery shown in FIG. 1 .
  • FIG. 4 is a schematic diagram of the insulating member, the first current collector and the first tab shown in FIG. 1 .
  • FIG. 5 is a schematic diagram of the insulating member, the first current collector and the first tab shown in FIG. 4 from another viewing angle.
  • FIG. 6 is a schematic diagram of a battery according to another embodiment of the present application.
  • FIG. 7 is a schematic block diagram of an electronic device according to an embodiment of the present application.
  • an embodiment of the present application provides a liquid battery 10 .
  • the liquid battery 10 includes a casing 11 , a separator 12 , a first slurry 13 , a first current collector 14 , a second slurry 15 , a second current collector 16 , a first tab 17 , and a connection with the first electrode.
  • the ears 17 are second polar tabs 18 with different polarities.
  • the housing 11 surrounds a receiving space 111 .
  • the isolation film 12 is disposed in the accommodating space 111 and divides the accommodating space 111 into a first cavity 1111 and a second cavity 1112 .
  • the first slurry 13 and the first current collector 14 are accommodated in the first cavity 1111 .
  • the second slurry 15 and the second current collector 16 are accommodated in the second cavity 1112 .
  • the first tab 17 is electrically connected to the first current collector 14 and is exposed to the casing 11 .
  • the second tab 18 is electrically connected to the second current collector 16 and is exposed to the casing 11 .
  • the first slurry 13 is in a liquid state or a casting state
  • the second slurry 15 is in a liquid state or a casting state
  • the casing 11 is a flexible casing.
  • the liquid electrode assembly composed of the first slurry 13 and the first current collector 14 , the separator 12 and the second slurry 15 and the second current collector 16 together replaces the traditional battery
  • the solid-state electrode assembly (the solid-state electrode assembly is formed by winding or laminating the first pole piece, the separator and the second pole piece), so that the liquid battery 10 not only has the same energy density as the traditional battery, but even higher At the same time, it also has full flexibility in three-dimensional directions.
  • the full flexibility in the three-dimensional direction means that the liquid battery 10 can be bent from 0° to 180° in various directions.
  • first edge 112 and a second edge 113 two ends of the casing 11 are sealed to form a first edge 112 and a second edge 113 respectively.
  • the first tab 17 and the second tab 18 both extend from the first edge 112 .
  • the isolation film 12 is disposed between the first tab 17 and the second tab 18 to electrically insulate the first tab 17 and the second tab 18 .
  • both the first tab 17 and the second tab 18 extend from the second edge 113 ; or, the first tab 17 is extended from the first edge 113 112, the second tab 18 extends from the second edge 113 (refer to FIG. 6).
  • the isolation film 12 includes a first end 121 and a second end 122 facing away from the first end 121 .
  • the first end 121 is disposed in the first edge 112
  • the second end 122 is disposed in the second edge 113 .
  • the casing 11 includes a first casing 114 and a second casing 115 .
  • the first casing 114 is connected to the second casing 115 to form the receiving space 111 .
  • the isolation film 12 is disposed between the first casing 114 and the second casing 115 . In this way, the first housing 114 and the isolation membrane 12 together form the first cavity 1111 , and the second housing 115 and the isolation membrane 12 together form the second cavity 1112 .
  • the first current collector 14 is connected to the surface of the first casing 114 facing the isolation diaphragm 12
  • the second current collector 16 is connected to the surface of the second casing 115 facing the isolation diaphragm 12 . surface.
  • the first tab 17 is welded to the first current collector 14
  • the second tab 18 is welded to the second current collector 16 .
  • the liquid battery 10 further includes an insulating member 19 .
  • the insulating member 19 is sealed in the first sealing edge 112 , so that the part of the first tab 17 located in the first sealing edge 112 is electrically insulated from the first sealing edge 112 , and the part located in the first sealing edge 112 is electrically insulated.
  • a portion of the second tab 18 in the first sealing edge 112 is electrically insulated from the first sealing edge 112 .
  • liquid battery 10 of the present application will be specifically described below through examples.
  • a liquid battery 10 includes a casing 11, a separator 12, a first slurry 13, a first current collector 14, a second slurry 15, a second current collector 16, a first tab 17, and all The second tab 18 and the insulating member 19 with different polarities of the first tab 17 are described.
  • the casing 11 is a flexible casing.
  • the casing 11 includes a first casing 114 and a second casing 115 .
  • the first casing 114 is connected to the second casing 115 and forms a closed receiving space 111 .
  • the connection between the first casing 114 and the second casing 115 is sealed to form a first edge 112 and a second edge 113 respectively, so as to seal the receiving space 111 .
  • the first sealing edge 112 and the second sealing edge 113 are disposed opposite to each other.
  • first shell 114 and the second shell 115 are integrally formed, so that the first edge 112 and the second seal are formed by sealing at both ends of the shell 11 .
  • Side 113 is enough.
  • the isolation film 12 is disposed between the first casing 114 and the second casing 115 , and divides the receiving space 111 into a first cavity 1111 and a second cavity 1112 which are independent of each other.
  • the first slurry 13 is accommodated in the first cavity 1111
  • the second slurry 15 is accommodated in the second cavity 1112 .
  • the electrical insulation between the first current collector 14 and the second current collector 16 is ensured by the arrangement of the isolation film 12 , and the first slurry 13 and the second slurry are ensured at the same time. ion conduction between the materials 15.
  • the isolation film 12 includes a first end 121 and a second end 122 facing away from the first end 121 .
  • the first end 121 is disposed in the first edge 112
  • the second end 122 is disposed in the second edge 113 .
  • the first housing 114 and the isolation membrane 12 together form the first cavity 1111
  • the second housing 115 and the isolation membrane 12 together form the second cavity 1112 .
  • Example 1 the first slurry 13 is in a liquid state or a casting state, and the second slurry 15 is in a liquid state or a casting state.
  • the first slurry 13 is used as the first slurry electrode of the liquid battery 10.
  • the preparation process is to add a gelable polymer additive to the electrolyte, and then mix the first polarity active material and long-range conductive agent. A semi-solid slurry is obtained; then the semi-solid slurry is poured or coated into the first cavity 1111 containing the first current collector 14 .
  • the second slurry 15 is used as the second slurry electrode of the liquid battery 10.
  • the preparation process is to add a gelable polymer additive to the electrolyte, and then mix the second polarity active material and long-range conductive agent.
  • a semi-solid slurry is obtained; then the semi-solid slurry is poured or coated into the second cavity 1112 containing the second current collector 15 .
  • the polarity of the first paste electrode is opposite to the polarity of the second paste electrode.
  • the first current collector 14 is connected to the surface of the first casing 114 facing the isolation diaphragm 12
  • the second current collector 16 is connected to the surface of the second casing 115 facing the isolation diaphragm 12 .
  • the first current collector 14 and the first casing 114 are electrically insulated
  • the second current collector 16 and the second casing 115 are electrically insulated.
  • both the first current collector 14 and the second current collector 16 are flexible current collectors.
  • the first current collector 14 can be bonded to the first casing 114 by adhesive, and the second current collector 16 can be bonded to the second casing 115 by adhesive.
  • the first tab 17 is electrically connected to the first current collector 14 and extends out of the casing 11 from the inside of the first edge 112 .
  • the second tab 18 is electrically connected to the second current collector 16 and extends out of the casing 11 from the inside of the first edge 112 .
  • the isolation film 12 is disposed between the first tab 17 and the second tab 18 to electrically insulate the first tab 17 and the second tab 18 .
  • the first tab 17 and the first current collector 14 and the second tab 18 and the second current collector 16 are connected by laser welding.
  • the insulating member 19 is sealed in the first sealing edge 112 , so that the part of the first tab 17 located in the first sealing edge 112 is electrically insulated from the first sealing edge 112 , and A portion of the second tab 18 in the first sealing edge 112 is electrically insulated from the first sealing edge 112 .
  • the liquid battery 10 includes two insulating members 19 .
  • One of the insulating members 19 wraps a portion of the first tab 17 located in the first edge 112
  • the other insulating member 19 wraps a portion of the second tab 18 located in the first edge 112 .
  • Embodiment 2 the difference between Embodiment 2 and Embodiment 1 lies in the positions of the second tab 18 and the insulating member 19 in Embodiment 2. As shown in FIG. 6 , the difference between Embodiment 2 and Embodiment 1 lies in the positions of the second tab 18 and the insulating member 19 in Embodiment 2. As shown in FIG. 6 , the difference between Embodiment 2 and Embodiment 1 lies in the positions of the second tab 18 and the insulating member 19 in Embodiment 2. As shown in FIG.
  • the second tab 18 extends from the second edge 113 .
  • Another insulating member 19 wraps a portion of the second tab 18 located in the second edge 113 .
  • the present application further provides an electronic device 100 .
  • the electronic device 100 includes the liquid battery 10 described above.
  • the electronic device 100 may be a mobile electronic device, an energy storage device, an electric vehicle, a hybrid electric vehicle, or the like.
  • the mobile electronic device may be a folding screen device, a wearable electronic device, or the like.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Cell Separators (AREA)

Abstract

一种液态电池，包括壳体、隔离膜、第一浆料、第一集流体、第二浆料、第二集流体、第一极耳及与所述第一极耳极性不同的第二极耳。所述壳体围设成收容空间。所述隔离膜设置于所述收容空间，并将所述收容空间分隔成第一腔体和第二腔体。所述第一浆料和所述第一集流体收容于所述第一腔体。所述第二浆料和所述第二集流体收容于所述第二腔体。所述第一极耳电连接所述第一集流体，并外露于所述壳体。所述第二极耳电连接所述第二集流体，并外露于所述壳体。本申请还提供了一种具有所述液态电池的电子装置。

Description

液态电池及具有所述液态电池的电子装置 技术领域
本申请涉及电化学领域，具体涉及液态电池及具有所述液态电池的电子装置。
背景技术
锂电池由于其本身具有能量密度高、循环寿命长、环境友好等优点，而被广泛应用于各种电子设备中。
随着柔性电子产品(例如，折叠屏设备、可穿戴电子设备等)的发展，为配合柔性电子产品的形状以及柔性电子产品在使用时形状和/或体积的变化，就要求电池需要具备一定的柔性。然而，目前电池中的电极组件(电极组件由第一极片、隔离膜和第二极片卷绕或叠片而形成)为固态。若将此类电池应用至柔性电子产品，通常需要牺牲能量密度(例如，在厚度方向上对电池进行减厚处理等)以确保电池的柔性能应用于柔性电子产品。
发明内容
有鉴于此，有必要提供一种液态电池，以解决上述问题。
一种液态电池，包括壳体，所述壳体围设成收容空间，所述液态电池还包括：
隔离膜，设置于所述收容空间，并将所述收容空间分隔成第一腔体和第二腔体；
第一浆料和第一集流体，收容于所述第一腔体；
第二浆料和第二集流体，收容于所述第二腔体；
第一极耳，电连接所述第一集流体，并外露于所述壳体；以及
与所述第一极耳极性不同的第二极耳，电连接所述第二集流体，并外露于所述壳体。
可选地，所述壳体的两端分别封印形成第一封边和第二封边，所述第一极耳和所述第二极耳均由所述第一封边内或所述第二封边 内延伸出，所述隔离膜设置于第一极耳和所述第二极耳之间。
可选地，所述壳体的两端分别封印形成第一封边和第二封边，所述第一极耳由所述第一封边内延伸出，所述第二极耳由所述第二封边内延伸出，所述隔离膜设置于第一极耳和所述第二极耳之间
可选地，所述隔离膜包括第一端及背对所述第一端的第二端，所述第一端设置于所述第一封边内，所述第二端设置于所述第二封边内。
可选地，所述壳体包括第一壳体及第二壳体，所述第一壳体连接所述第二壳体以形成所述收容空间，所述隔离膜设置于所述第一壳体和所述第二壳体之间，所述第一壳体和所述隔离膜一起形成所述第一腔体，所述第二壳体和所述隔离膜一起形成所述第二腔体。
可选地，所述第一集流体连接所述第一壳体朝向所述隔离膜的表面，所述第二集流体连接所述第二壳体朝向所述隔离膜的表面。
可选地，所述第一极耳焊接于所述第一集流体，所述第二极耳焊接于所述第二集流体。
可选地，所述第一浆料为液态或流延态，所述第二浆料为液态或流延态。
可选地，所述液态电池还包括绝缘件，所述绝缘件密封于所述第一封边内，以使得位于所述第一封边内的部分所述第一极耳和所述第一封边电性绝缘，以及位于所述第一封边内的部分所述第二极耳和所述第一封边电性绝缘。
一种电子装置，包括如上述任一项所述的液态电池。
本申请中将所述第一浆料和所述第一集流体、所述隔离膜以及所述第二浆料和所述第二集流体一起所构成液态电极组件替代传统电池中的固态电极组件(所述固态电极组件为由第一极片、隔离膜和第二极片卷绕或叠片而形成)，使得液态电池不仅具有传统电池同等，甚至更高的能量密度的同时，还具备三维方向的全柔性。
附图说明
图1为本申请一实施方式的电池的示意图。
图2为图1所示第一极耳、第二极耳和绝缘件在另一视角下的 部分剖面示意图。
图3为图1所示电池的部分结构示意图。
图4为图1所示绝缘件、第一集流体和第一极耳的示意图。
图5为图4所示绝缘件、第一集流体和第一极耳在另一视角下的示意图。
图6为本申请另一实施方式的电池的示意图。
图7为本申请一实施方式的电子装置的模块示意图。
主要元件符号说明
液态电池                   10
壳体                       11
收容空间                   111
第一腔体                   1111
第二腔体                   1112
第一封边                   112
第二封边                   113
第一壳体                   114
第二壳体                   115
隔离膜                     12
第一端                     121
第二端                     122
第一浆料                   13
第一集流体                 14
第二浆料                   15
第二集流体                 16
第一极耳                   17
第二极耳                   18
绝缘件                     19
电子装置                   100
如下具体实施方式将结合上述附图进一步说明本申请。
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，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
参阅图1，本申请实施方式提供了一种液态电池10。所述液态电池10包括壳体11、隔离膜12、第一浆料13、第一集流体14、第二浆料15、第二集流体16、第一极耳17及与所述第一极耳17极性不同的第二极耳18。所述壳体11围设成收容空间111。所述隔离膜12设置于所述收容空间111，并将所述收容空间111分隔成第一腔体1111和第二腔体1112。所述第一浆料13和所述第一集流体14收容于所述第一腔体1111。所述第二浆料15和所述第二集流体16收容于所述第二腔体1112。所述第一极耳17电连接所述第一集流体14，并外露于所述壳体11。所述第二极耳18电连接所述第二集流体16，并外露于所述壳体11。
在本实施方式中，所述第一浆料13为液态或流延态，所述第二浆料15为液态或流延态。所述壳体11为柔性壳体。
本申请中将所述第一浆料13和所述第一集流体14、所述隔离膜12以及所述第二浆料15和所述第二集流体16一起所构成液态电极组件替代传统电池中的固态电极组件(所述固态电极组件为由第一极片、隔离膜和第二极片卷绕或叠片而形成)，使得液态电池10不仅具有传统电池同等，甚至更高的能量密度的同时，还具备三维方向的全柔性。其中，三维方向的全柔性是指液态电池10可以在各个方向上实现0°-180°弯曲。
参图1，所述壳体11的两端分别封印形成第一封边112和第二封边113。其中，所述第一极耳17和所述第二极耳18均由所述第一封边112内延伸出。所述隔离膜12设置于所述第一极耳17和所述第二极耳18之间，以使得所述第一极耳17和所述第二极耳18之间电性绝缘。
在其他实施方式中，所述第一极耳17和所述第二极耳18均由所述第二封边113内延伸出；或者，所述第一极耳17由所述第一封边112内延伸出，所述第二极耳18由所述第二封边113内延伸出(参图6)。
参图3，所述隔离膜12包括第一端121及背对所述第一端121的第二端122。所述第一端121设置于所述第一封边112内，所述第二端122设置于所述第二封边113内。
参图3，所述壳体11包括第一壳体114及第二壳体115。所述第一壳体114连接所述第二壳体115以形成所述收容空间111。所述隔离膜12设置于所述第一壳体114和所述第二壳体115之间。如此，所述第一壳体114和所述隔离膜12一起形成所述第一腔体1111，所述第二壳体115和所述隔离膜12一起形成所述第二腔体1112。
参图3，所述第一集流体14连接所述第一壳体114朝向所述隔离膜12的表面，所述第二集流体16连接所述第二壳体115朝向所述隔离膜12的表面。
参图1，所述第一极耳17焊接于所述第一集流体14，所述第二极耳18焊接于所述第二集流体16。
参图1、图2、图4和图5，所述液态电池10还包括绝缘件19。所述绝缘件19密封于所述第一封边112内，以使得位于所述第一封边112内的部分所述第一极耳17和所述第一封边112电性绝缘，及位于所述第一封边112内的部分所述第二极耳18和所述第一封边112电性绝缘。
下面通过实施例对本申请的液态电池10进行具体说明。
实施例1
参图1，一种液态电池10包括壳体11、隔离膜12、第一浆料13、第一集流体14、第二浆料15、第二集流体16、第一极耳17、 与所述第一极耳17极性不同的第二极耳18及绝缘件19。在实施例1中，所述壳体11为柔性壳体。
参图1，所述壳体11包括第一壳体114和第二壳体115。所述第一壳体114连接所述第二壳体115，并形成封闭的收容空间111。其中，所述第一壳体114和所述第二壳体115的连接处分别封印形成第一封边112和第二封边113，以密封所述收容空间111。所述第一封边112和所述第二封边113背对设置。
在其他实施方式中，所述第一壳体114和所述第二壳体115一体成型，如此，于所述壳体11的两端封印形成所述第一封边112和所述第二封边113即可。
所述隔离膜12设置于所述第一壳体114和所述第二壳体115之间，并将所述收容空间111分隔成彼此独立的第一腔体1111和第二腔体1112。其中，所述第一浆料13收容于所述第一腔体1111，所述第二浆料15收容于所述第二腔体1112。如此，借助所述隔离膜12的设置保证所述第一集流体14和所述第二集流体16之间的电性绝缘的同时，保证了所述第一浆料13和所述第二浆料15之间的离子导通。
具体地，所述隔离膜12包括第一端121及背对所述第一端121的第二端122。所述第一端121设置于所述第一封边112内，所述第二端122设置于所述第二封边113内。如此，所述第一壳体114和所述隔离膜12一起形成所述第一腔体1111，所述第二壳体115和所述隔离膜12一起形成所述第二腔体1112。
在实施例1中，所述第一浆料13呈液态或流延态，所述第二浆料15呈液态或流延态。
所述第一浆料13作为液态电池10的第一浆料电极，其制备过程为在电解液中加入可凝胶化的聚合物添加剂，之后混入第一极性的活性物质和长程导电剂，得到半固态浆料；随后将该半固态浆料灌注或涂布到含有所述第一集流体14的第一腔体1111中。
所述第二浆料15作为液态电池10的第二浆料电极，其制备过程为在电解液中加入可凝胶化的聚合物添加剂，之后混入第二极性的活性物质和长程导电剂，得到半固态浆料；随后将该半固态浆料 灌注或涂布到含有所述第二集流体15的第二腔体1112中。所述第一浆料电极的极性与所述第二浆料电极的极性相反。
所述第一集流体14连接所述第一壳体114朝向所述隔离膜12的表面，所述第二集流体16连接所述第二壳体115朝向所述隔离膜12表面。其中，所述第一集流体14和所述第一壳体114之间电性绝缘，所述第二集流体16和所述第二壳体115之间电性绝缘。在实施例1中，所述第一集流体14和所述第二集流体16均为柔性集流体。
一实施方式中，所述第一集流体14可通过粘胶粘接于所述第一壳体114，所述第二集流体16可通过粘胶粘接于所述第二壳体115。
所述第一极耳17电连接所述第一集流体14，并由所述第一封边112内延伸出所述壳体11外。所述第二极耳18电连接所述第二集流体16，并由所述第一封边112内延伸出所述壳体11外。其中，所述隔离膜12设置于所述第一极耳17和所述第二极耳18之间，以使得所述第一极耳17和所述第二极耳18之间电性绝缘。
在实施例1中，所述第一极耳17和所述第一集流体14之间，以及所述第二极耳18和所述第二集流体16之间通过激光焊连接。
所述绝缘件19密封于所述第一封边112内，以使得位于所述第一封边112内的部分所述第一极耳17和所述第一封边112电性绝缘，以及位于所述第一封边112内的部分所述第二极耳18和所述第一封边112电性绝缘。
在实施例1中，所述液态电池10包括两所述绝缘件19。其中一绝缘件19包裹位于所述第一封边112内的部分所述第一极耳17，另一绝缘件19包裹位于所述第一封边112内的部分所述第二极耳18。
实施例2
参图6，实施例2与实施例1的区别在于，实施例2中的第二极耳18及绝缘件19的位置。
参图6，在实施例2中，所述第二极耳18由所述第二封边113内延伸出。另一绝缘件19包裹位于所述第二封边113内的部分所述第二极耳18。
参图7，本申请还提供了一种电子装置100。所述电子装置100包括上述所述的液态电池10。
其中，所述电子装置100可以是移动电子设备、储能设备、电动汽车、混合动力电动汽车等。所述移动电子设备可以是折叠屏设备、穿戴式电子设备等。
以上实施例仅用以说明本申请的技术方案而非限制，尽管参照较佳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，可以对本申请的技术方案进行修改或等同替换，而不脱离本申请技术方案的精神和实质。

Claims (10)

  1. 一种液态电池，包括壳体，所述壳体围设成收容空间，其特征在于，所述液态电池还包括：
    隔离膜，设置于所述收容空间，并将所述收容空间分隔成第一腔体和第二腔体；
    第一浆料和第一集流体，收容于所述第一腔体；
    第二浆料和第二集流体，收容于所述第二腔体；
    第一极耳，电连接所述第一集流体，并外露于所述壳体；以及
    与所述第一极耳极性不同的第二极耳，电连接所述第二集流体，并外露于所述壳体。
  2. 如权利要求1所述的液态电池，其特征在于，所述壳体的两端分别封印形成第一封边和第二封边，所述第一极耳和所述第二极耳均由所述第一封边内或所述第二封边内延伸出，所述隔离膜设置于第一极耳和所述第二极耳之间。
  3. 如权利要求1所述的液态电池，其特征在于，所述壳体的两端分别封印形成第一封边和第二封边，所述第一极耳由所述第一封边内延伸出，所述第二极耳由所述第二封边内延伸出，所述隔离膜设置于第一极耳和所述第二极耳之间。
  4. 如权利要求2或3所述的液态电池，其特征在于，所述隔离膜包括第一端及背对所述第一端的第二端，所述第一端设置于所述第一封边内，所述第二端设置于所述第二封边内。
  5. 如权利要求1所述的液态电池，其特征在于，所述壳体包括第一壳体及第二壳体，所述第一壳体连接所述第二壳体以形成所述收容空间，所述隔离膜设置于所述第一壳体和所述第二壳体之间，所述第一壳体和所述隔离膜一起形成所述第一腔体，所述第二壳体和所述隔离膜一起形成所述第二腔体。
  6. 如权利要求1所述的液态电池，其特征在于，所述第一集流体连接所述第一壳体朝向所述隔离膜的表面，所述第二集流体连接所述第二壳体朝向所述隔离膜的表面。
  7. 如权利要求1所述的液态电池，其特征在于，所述第一极耳焊 接于所述第一集流体，所述第二极耳焊接于所述第二集流体。
  8. 如权利要求1所述的液态电池，其特征在于，所述第一浆料为液态或流延态，所述第二浆料为液态或流延态。
  9. 如权利要求2所述的液态电池，其特征在于，所述液态电池还包括绝缘件，所述绝缘件密封于所述第一封边内，以使得位于所述第一封边内的部分所述第一极耳和所述第一封边电性绝缘，以及位于所述第一封边内的部分所述第二极耳和所述第一封边电性绝缘。
  10. 一种电子装置，其特征在于，所述电子装置包括如权利要求1-9中任一项所述的液态电池。
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