WO2017177952A1 - Flexible battery with high safety performance - Google Patents

Flexible battery with high safety performance Download PDF

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Publication number
WO2017177952A1
WO2017177952A1 PCT/CN2017/080474 CN2017080474W WO2017177952A1 WO 2017177952 A1 WO2017177952 A1 WO 2017177952A1 CN 2017080474 W CN2017080474 W CN 2017080474W WO 2017177952 A1 WO2017177952 A1 WO 2017177952A1
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WO
WIPO (PCT)
Prior art keywords
flexible
flexible substrate
battery
negative electrode
positive electrode
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Application number
PCT/CN2017/080474
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French (fr)
Chinese (zh)
Inventor
薛永
谢志懋
王占东
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佛山市欣源电子股份有限公司
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Publication of WO2017177952A1 publication Critical patent/WO2017177952A1/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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • 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 utility model relates to the field of battery manufacturing, in particular to the field of manufacturing flexible batteries.
  • lithium-ion flexible batteries are still far from the traditional lithium-ion batteries.
  • Graphene has been widely used as a lithium ion core material, but it still has certain limitations in mechanical properties. Restricting the development of flexible batteries is a crucial issue, and it is also the most difficult at present, due to the complex self-healing ability of flexible batteries.
  • the utility model discloses a flexible battery with high safety performance, which not only has excellent bending and tensile properties, but also ensures that the battery does not undergo lamination or overall failure when deformed by external force, so as to improve Safety and mechanical properties of flexible batteries.
  • the utility model comprises a fiber outer casing 1, a positive flexible base 2 and a negative flexible base 3.
  • a flexible diaphragm 4 is arranged between the positive flexible substrate 2 and the negative flexible substrate 3.
  • the fiber outer casing 1 encloses the positive flexible substrate 2 and the negative flexible
  • the base body 3 and the flexible diaphragm 4, the positive electrode flexible base 2 and the flexible diaphragm 4 are provided with a positive electrode terminal 21, the bottom of the negative electrode flexible substrate 3 is provided with an electrolyte 30, and the negative electrode flexible substrate 3 and the electrolyte region 30 are provided with a negative electrode. Lead end 31.
  • the electrolyte 30 is disposed at the bottom of the negative flexible substrate 3, and the flexible battery electrolyte has certain adsorption characteristics, ensuring that the flexible battery does not leak electrolyte under the action of external force; and the flexible battery is developed in the development of the electrolyte.
  • the electrolyte is leaky due to its easy deformation, the flexible battery electrolyte has a certain absorption function, and the second is provided with a flexible diaphragm on the two flexible electrodes, and the electrode and the diaphragm are bonded to prevent cracking after mechanical deformation. And to ensure that the battery will not be cracked or the overall failure when the external force is deformed, in order to improve the safety performance and mechanical properties of the flexible battery.
  • Figure 1 is a cross-sectional view of the present invention.
  • a fiber casing 1 , a positive electrode flexible substrate 2 and a negative electrode flexible substrate 3 are disposed.
  • a flexible diaphragm 4 is disposed between the positive electrode flexible substrate 2 and the negative electrode flexible substrate 3 , and the fiber casing 1 encloses the positive electrode flexible substrate 2 .
  • the anode flexible substrate 3 and the flexible membrane 4, the positive electrode flexible terminal 2 and the flexible membrane 4 are provided with a positive electrode terminal 21, the bottom of the negative electrode flexible substrate 3 is provided with an electrolyte 30, and the negative electrode flexible substrate 3 is disposed between the electrolyte substrate 30 and the electrolyte region 30.
  • the electrolyte 30 is disposed at the bottom of the negative flexible substrate 3, and the flexible battery electrolyte has certain adsorption characteristics, ensuring that the flexible battery does not leak electrolyte under the action of external force; and the flexible battery is developed in the development of the electrolyte.
  • the electrolyte is leaking due to its easy deformation, the flexible battery electrolyte has a certain absorption function, and the second is in two flexible electrodes. It is equipped with a flexible diaphragm, which utilizes the adhesion of the electrode and the diaphragm to prevent cracking after mechanical deformation, and to ensure that the battery does not undergo cracking or overall failure when deformed by external force, so as to improve the safety performance of the flexible battery. And mechanical properties.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

A flexible battery with high safety performance, which relates to the manufacturing field of batteries and specifically, to the manufacturing field of flexible batteries. The flexible battery is characterized by comprising a fiber housing (1), a positive electrode flexible substrate (2), and a negative electrode flexible substrate (3). A flexible separator (4) is disposed between the positive electrode flexible substrate (2) and the negative electrode flexible substrate (3). The fiber housing (1) wraps the positive electrode flexible substrate (2), the negative electrode flexible substrate (3) and the flexible separator (4). A positive electrode lead-out end (21) is disposed between the positive electrode flexible substrate (1) and the flexible separator (4), electrolyte (30) is arranged at the bottom of the negative electrode flexible substrate (3), and a negative electrode lead-out end (31) is disposed between the negative electrode flexible substrate (3) and the electrolyte (30). The flexible battery has excellent bendable and stretchable performance, and ensures that the situation of layer spallation or malfunction of the whole battery does not occur when the battery is deformed due to external force applied to the battery, so as to improve the security performance and mechanical performance of the flexible battery.

Description

一种安全性能高的柔性电池Flexible battery with high safety performance 技术领域Technical field
本实用新型涉及电池制造领域，具体涉及柔性电池的制造领域。The utility model relates to the field of battery manufacturing, in particular to the field of manufacturing flexible batteries.
背景技术Background technique
目前，国内市场上在柔性锂离子电池方面，锂离子电极材料的制备技术已经取得了很大的进步，并也取得了相应的技术成果。但是，在电性能方面，锂离子的柔性电池还是离传统锂离子电池有一定的差距，石墨烯已经作为锂离子核心材料，也被广泛应用，但是在力学性能上还是有一定的局限性，而且制约柔性电池发展有着至关重要的问题，就目前来说也最最棘手，由于受各种复杂影响柔性电池一定要具有的自我修复能力。At present, in the domestic market, in the flexible lithium ion battery, the preparation technology of the lithium ion electrode material has made great progress, and the corresponding technical achievements have also been obtained. However, in terms of electrical performance, lithium-ion flexible batteries are still far from the traditional lithium-ion batteries. Graphene has been widely used as a lithium ion core material, but it still has certain limitations in mechanical properties. Restricting the development of flexible batteries is a crucial issue, and it is also the most difficult at present, due to the complex self-healing ability of flexible batteries.
发明内容Summary of the invention
本实用新型公开了一种安全性能高的柔性电池，不但具备有优良的弯折、拉伸性能，并保证电池在受外界力发生形变的时候不会发生层裂或整体失效的情况，以提高柔性电池的安全性能和力学性能。The utility model discloses a flexible battery with high safety performance, which not only has excellent bending and tensile properties, but also ensures that the battery does not undergo lamination or overall failure when deformed by external force, so as to improve Safety and mechanical properties of flexible batteries.
本实用新型：包括纤维外壳1、正极柔性基体2和负极柔性基体3，所述正极柔性基体2与负极柔性基体3之间设有柔性隔膜4，纤维外壳1包裹着正极柔性基体2、负极柔性基体3和柔性隔膜4，正极柔性基体2与柔性隔膜4之间设有正极引出端21，负极柔性基体3的底部设有电解液30，负极柔性基体3与电解液区域30之间设有负极引出端31。The utility model comprises a fiber outer casing 1, a positive flexible base 2 and a negative flexible base 3. A flexible diaphragm 4 is arranged between the positive flexible substrate 2 and the negative flexible substrate 3. The fiber outer casing 1 encloses the positive flexible substrate 2 and the negative flexible The base body 3 and the flexible diaphragm 4, the positive electrode flexible base 2 and the flexible diaphragm 4 are provided with a positive electrode terminal 21, the bottom of the negative electrode flexible substrate 3 is provided with an electrolyte 30, and the negative electrode flexible substrate 3 and the electrolyte region 30 are provided with a negative electrode. Lead end 31.
在负极柔性基体3的底部设有电解液30，柔性电池电解液具一定的吸附的特性，保证柔性电池在受外力的作用下不会发生电解液的泄露；而在电解液的开发上柔性电池电解液，因其易受力形变发生漏液，柔性电池电解液具有一定的吸收功能，第二在两个柔性电极设有柔性隔膜，利用电极和隔膜粘合作用，防止在机械变形后发生破裂，并保证电池在受外界力发生形变的时候不会发生层裂或整体失效的情况，以提高柔性电池的安全性能和力学性能。The electrolyte 30 is disposed at the bottom of the negative flexible substrate 3, and the flexible battery electrolyte has certain adsorption characteristics, ensuring that the flexible battery does not leak electrolyte under the action of external force; and the flexible battery is developed in the development of the electrolyte. The electrolyte is leaky due to its easy deformation, the flexible battery electrolyte has a certain absorption function, and the second is provided with a flexible diaphragm on the two flexible electrodes, and the electrode and the diaphragm are bonded to prevent cracking after mechanical deformation. And to ensure that the battery will not be cracked or the overall failure when the external force is deformed, in order to improve the safety performance and mechanical properties of the flexible battery.
附图说明DRAWINGS
图1是本实用新型的剖视图。Figure 1 is a cross-sectional view of the present invention.
具体实施方式detailed description
如图1所示，包括纤维外壳1、正极柔性基体2和负极柔性基体3，所述正极柔性基体2与负极柔性基体3之间设有柔性隔膜4，纤维外壳1包裹着正极柔性基体2、负极柔性基体3和柔性隔膜4，正极柔性基体2与柔性隔膜4之间设有正极引出端21，负极柔性基体3的底部设有电解液30，负极柔性基体3与电解液区域30之间设有负极引出端31。As shown in FIG. 1 , a fiber casing 1 , a positive electrode flexible substrate 2 and a negative electrode flexible substrate 3 are disposed. A flexible diaphragm 4 is disposed between the positive electrode flexible substrate 2 and the negative electrode flexible substrate 3 , and the fiber casing 1 encloses the positive electrode flexible substrate 2 . The anode flexible substrate 3 and the flexible membrane 4, the positive electrode flexible terminal 2 and the flexible membrane 4 are provided with a positive electrode terminal 21, the bottom of the negative electrode flexible substrate 3 is provided with an electrolyte 30, and the negative electrode flexible substrate 3 is disposed between the electrolyte substrate 30 and the electrolyte region 30. There is a negative electrode terminal 31.
在负极柔性基体3的底部设有电解液30，柔性电池电解液具一定的吸附的特性，保证柔性电池在受外力的作用下不会发生电解液的泄露；而在电解液的开发上柔性电池电解液，因其易受力形变发生漏液，柔性电池电解液具有一定的吸收功能，第二在两个柔性电极 设有柔性隔膜，利用电极和隔膜粘合作用，防止在机械变形后发生破裂，并保证电池在受外界力发生形变的时候不会发生层裂或整体失效的情况，以提高柔性电池的安全性能和力学性能。The electrolyte 30 is disposed at the bottom of the negative flexible substrate 3, and the flexible battery electrolyte has certain adsorption characteristics, ensuring that the flexible battery does not leak electrolyte under the action of external force; and the flexible battery is developed in the development of the electrolyte. The electrolyte is leaking due to its easy deformation, the flexible battery electrolyte has a certain absorption function, and the second is in two flexible electrodes. It is equipped with a flexible diaphragm, which utilizes the adhesion of the electrode and the diaphragm to prevent cracking after mechanical deformation, and to ensure that the battery does not undergo cracking or overall failure when deformed by external force, so as to improve the safety performance of the flexible battery. And mechanical properties.
最后应说明的是：显然，上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的显而易见的变化或变动仍处于本实用新型的保护范围之中。 It should be noted that the above-described embodiments are merely illustrative of the invention and are not intended to limit the embodiments. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations resulting therefrom are still within the scope of the present invention.

Claims (1)

  1. 一种安全性能高的柔性电池，其特征是：包括纤维外壳(1)、正极柔性基体(2)和负极柔性基体(3)，所述正极柔性基体(2)与负极柔性基体(3)之间设有柔性隔膜(4)，纤维外壳(1)包裹着正极柔性基体(2)、负极柔性基体(3)和柔性隔膜(4)，正极柔性基体(2)与柔性隔膜(4)之间设有正极引出端(21)，负极柔性基体(3)的底部设有电解液(30)，负极柔性基体(3)与电解液(30)之间设有负极引出端(31)。 A flexible battery with high safety performance, comprising: a fiber outer casing (1), a positive flexible substrate (2) and a negative flexible substrate (3), the positive flexible substrate (2) and the negative flexible substrate (3) Between the flexible membrane (4), the fiber casing (1) encloses the positive flexible substrate (2), the negative flexible substrate (3) and the flexible membrane (4), between the positive flexible substrate (2) and the flexible membrane (4) A positive electrode lead end (21) is provided, an electrolyte solution (30) is disposed at the bottom of the negative electrode flexible substrate (3), and a negative electrode lead end (31) is disposed between the negative electrode flexible substrate (3) and the electrolyte solution (30).
PCT/CN2017/080474 2016-04-16 2017-04-13 Flexible battery with high safety performance WO2017177952A1 (en)

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CN201620315906.7U CN205863273U (en) 2016-04-16 2016-04-16 The flexible battery that a kind of security performance is high
CN201620315906.7 2016-04-16

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205863273U (en) * 2016-04-16 2017-01-04 佛山市欣源电子股份有限公司 The flexible battery that a kind of security performance is high

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102656729A (en) * 2010-06-29 2012-09-05 松下电器产业株式会社 Thin flexible battery
CN103904366A (en) * 2014-03-09 2014-07-02 复旦大学 Flexible linear lithium ion battery and preparation method thereof
CN104466229A (en) * 2013-09-25 2015-03-25 华为技术有限公司 Flexible lithium secondary battery and preparation method thereof
CN104752731A (en) * 2013-12-25 2015-07-01 比亚迪股份有限公司 Flexible lithium ion battery current collector, flexible lithium ion battery and preparation method of flexible lithium ion battery
CN105355850A (en) * 2015-12-03 2016-02-24 辉能（天津）科技发展有限公司 Flexible electrode and battery employing same
CN205863273U (en) * 2016-04-16 2017-01-04 佛山市欣源电子股份有限公司 The flexible battery that a kind of security performance is high

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102656729A (en) * 2010-06-29 2012-09-05 松下电器产业株式会社 Thin flexible battery
CN104466229A (en) * 2013-09-25 2015-03-25 华为技术有限公司 Flexible lithium secondary battery and preparation method thereof
CN104752731A (en) * 2013-12-25 2015-07-01 比亚迪股份有限公司 Flexible lithium ion battery current collector, flexible lithium ion battery and preparation method of flexible lithium ion battery
CN103904366A (en) * 2014-03-09 2014-07-02 复旦大学 Flexible linear lithium ion battery and preparation method thereof
CN105355850A (en) * 2015-12-03 2016-02-24 辉能（天津）科技发展有限公司 Flexible electrode and battery employing same
CN205863273U (en) * 2016-04-16 2017-01-04 佛山市欣源电子股份有限公司 The flexible battery that a kind of security performance is high

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