CN107819097A - 一种带隔膜的锂离子电池 - Google Patents

一种带隔膜的锂离子电池 Download PDF

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CN107819097A
CN107819097A CN201711101401.6A CN201711101401A CN107819097A CN 107819097 A CN107819097 A CN 107819097A CN 201711101401 A CN201711101401 A CN 201711101401A CN 107819097 A CN107819097 A CN 107819097A
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parts
ion battery
barrier film
lithium
coating
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余雁
吴曲勇
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Suzhou Gerui Dynamic Power Technology Co Ltd
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Suzhou Gerui Dynamic Power Technology Co Ltd
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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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/446—Composite material consisting of a mixture of organic and inorganic materials
    • 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
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • 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
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Cell Separators (AREA)

Abstract

本发明公开了一种带隔膜的锂离子电池，包括锂离子电池单体，锂离子电池单体内设有隔膜，该隔膜由基膜以及覆盖基膜两侧的涂层组成；所述涂层由以下组分组成：失水山梨醇脂肪酸酯，丁烯二酸酐，聚苯硫醚，硫酸氧钛，羟基丙基甲基纤维素，油酰甲胺乙磺酸钠，乙酸乙烯酯，丙二醇甲醚醋酸酯，肌醇六磷酸酯，陶瓷粉体。本发明带隔膜的锂离子电池，其锂离子电池单体内置隔膜，该隔膜具有强度高、抗氧化性和热稳定性强的优点。

Description

一种带隔膜的锂离子电池
技术领域
本发明涉及一种带隔膜的锂离子电池。
背景技术
锂离子电池应用领域广，包括手机、笔记本电脑等电子终端设备，甚至是走向了电动汽车和储能技术领域；锂离子电池从结构上分为正极、负极、隔膜、电解液和外壳。其中，隔膜用于阻隔电池正极和负极，防止出现电池内部短路，但允许锂离子迅速地通过。
然而，当锂离子电池内部的温度升高时，传统的锂离子电池隔膜会出现收缩，关闭多孔结构，甚至会发生熔融继而出现破孔，导致电池内部短路，发生燃烧甚至爆炸事件，严重降低了锂离子电池的安全性能。
发明内容
本发明的目的在于提供一种带隔膜的锂离子电池，其锂离子电池单体内置隔膜，该隔膜具有强度高、抗氧化性和热稳定性强的优点。
为实现上述目的，本发明的技术方案是设计一种带隔膜的锂离子电池，包括锂离子电池单体，锂离子电池单体内设有隔膜，该隔膜由基膜以及覆盖基膜两侧的涂层组成，所述基膜由聚砜膜和无纺布复合而成；所述涂层由以下组分组成：失水山梨醇脂肪酸酯，丁烯二酸酐，聚苯硫醚，硫酸氧钛，羟基丙基甲基纤维素，油酰甲胺乙磺酸钠，乙酸乙烯酯，丙二醇甲醚醋酸酯，肌醇六磷酸酯，陶瓷粉体。
优选的，所述涂层按重量份计由以下组分组成：
3.9份失水山梨醇脂肪酸酯，
4.1份丁烯二酸酐，
6.5份聚苯硫醚，
1.1份硫酸氧钛，
4.1份羟基丙基甲基纤维素，
2.9份油酰甲胺乙磺酸钠，
3.8份乙酸乙烯酯，
4.3份丙二醇甲醚醋酸酯，
2.9份肌醇六磷酸酯，
92份陶瓷粉体。
本发明的优点和有益效果在于：提供一种带隔膜的锂离子电池，其锂离子电池单体内置隔膜，该隔膜具有强度高、抗氧化性和热稳定性强的优点。
具体实施方式
下面结合实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
本发明具体实施的技术方案是：
一种带隔膜的锂离子电池，包括锂离子电池单体，锂离子电池单体内设有隔膜，该隔膜由基膜以及覆盖基膜两侧的涂层组成，所述基膜由聚砜膜和无纺布复合而成；所述涂层按重量份计由以下组分组成：
3.9份失水山梨醇脂肪酸酯，
4.1份丁烯二酸酐，
6.5份聚苯硫醚，
1.1份硫酸氧钛，
4.1份羟基丙基甲基纤维素，
2.9份油酰甲胺乙磺酸钠，
3.8份乙酸乙烯酯，
4.3份丙二醇甲醚醋酸酯，
2.9份肌醇六磷酸酯，
92份陶瓷粉体。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (2)

1.一种带隔膜的锂离子电池，包括锂离子电池单体，锂离子电池单体内设有隔膜，该隔膜由基膜以及覆盖基膜两侧的涂层组成，所述基膜由聚砜膜和无纺布复合而成；其特征在于，所述涂层由以下组分组成：失水山梨醇脂肪酸酯，丁烯二酸酐，聚苯硫醚，硫酸氧钛，羟基丙基甲基纤维素，油酰甲胺乙磺酸钠，乙酸乙烯酯，丙二醇甲醚醋酸酯，肌醇六磷酸酯，陶瓷粉体。
2.根据权利要求1所述的带隔膜的锂离子电池，其特征在于，所述涂层按重量份计由以下组分组成：
3.9份失水山梨醇脂肪酸酯，
4.1份丁烯二酸酐，
6.5份聚苯硫醚，
1.1份硫酸氧钛，
4.1份羟基丙基甲基纤维素，
2.9份油酰甲胺乙磺酸钠，
3.8份乙酸乙烯酯，
4.3份丙二醇甲醚醋酸酯，
2.9份肌醇六磷酸酯，
92份陶瓷粉体。
CN201711101401.6A 2017-11-10 2017-11-10 一种带隔膜的锂离子电池 Pending CN107819097A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203553254U (zh) * 2013-10-23 2014-04-16 深圳市冠力新材料有限公司 一种聚乙烯高分子隔膜
CN103779527A (zh) * 2014-01-29 2014-05-07 中国科学院宁波材料技术与工程研究所 一种隔膜及其制备方法
CN104766938A (zh) * 2015-02-10 2015-07-08 龙岩紫荆创新研究院 一种复合型锂离子电池隔膜及其制备方法
CN104766937A (zh) * 2015-02-10 2015-07-08 龙岩紫荆创新研究院 一种环保型锂离子电池隔膜及其制备方法
CN105428577A (zh) * 2015-12-25 2016-03-23 苏州格瑞动力电源科技有限公司 一种锂离子电池的隔膜

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203553254U (zh) * 2013-10-23 2014-04-16 深圳市冠力新材料有限公司 一种聚乙烯高分子隔膜
CN103779527A (zh) * 2014-01-29 2014-05-07 中国科学院宁波材料技术与工程研究所 一种隔膜及其制备方法
CN104766938A (zh) * 2015-02-10 2015-07-08 龙岩紫荆创新研究院 一种复合型锂离子电池隔膜及其制备方法
CN104766937A (zh) * 2015-02-10 2015-07-08 龙岩紫荆创新研究院 一种环保型锂离子电池隔膜及其制备方法
CN105428577A (zh) * 2015-12-25 2016-03-23 苏州格瑞动力电源科技有限公司 一种锂离子电池的隔膜

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Application publication date: 20180320