CN104882628B - 一种锂聚合物电池 - Google Patents

一种锂聚合物电池 Download PDF

Info

Publication number
CN104882628B
CN104882628B CN201510224489.5A CN201510224489A CN104882628B CN 104882628 B CN104882628 B CN 104882628B CN 201510224489 A CN201510224489 A CN 201510224489A CN 104882628 B CN104882628 B CN 104882628B
Authority
CN
China
Prior art keywords
plate
negative
positive plate
negative electrode
positive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510224489.5A
Other languages
English (en)
Other versions
CN104882628A (zh
Inventor
冉柠恺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ang Jia Science And Technology Ltd Of Shenzhen
Original Assignee
Ang Jia Science And Technology Ltd Of Shenzhen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ang Jia Science And Technology Ltd Of Shenzhen filed Critical Ang Jia Science And Technology Ltd Of Shenzhen
Priority to CN201510224489.5A priority Critical patent/CN104882628B/zh
Publication of CN104882628A publication Critical patent/CN104882628A/zh
Application granted granted Critical
Publication of CN104882628B publication Critical patent/CN104882628B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/411Organic material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/449Separators, membranes or diaphragms characterised by the material having a layered structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/531Electrode connections inside a battery casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/056Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0565Polymeric materials, e.g. gel-type or solid-type
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

本发明涉及本发明提供了一种锂聚合物电池,其包括正极板、负极板和隔离膜,正极板包括正极片、正极耳和正极活性物质,其中,正极片为铝箔片,正极活性物质涂覆在铝箔片上;负极板包括负极片、负极耳和负极活性物质,负极片为铜箔片,负极活性物质涂覆在铜箔片上,正极板和负极板之间设置有用于使正极板与负极板绝缘的隔离膜,隔离膜为多层结构膜,本发明采用多层结构的隔离膜,并采用特殊的制造工艺,使得该锂聚合物电池的离子导电性和机械强度显著增强,而且,通过在正极耳和负极耳的表面设置包覆的镍镀层,能够省去昂贵的转镍设备,降低了电池内阻,大大提高了电池的合格率。

Description

一种锂聚合物电池
技术领域
本发明涉及锂聚合物电池技术领域,具体为一种锂聚合物电池。
背景技术
自1991年Sony公司开发的锂离子电池上市以来,锂离子电池以其高比能密度和使用寿命长而受到重视,发展迅速,美国、日本和台湾等国家和地区也重点发展锂聚合物电池。近年来,锂聚合物电池发展迅猛,试图取代镉镍和氢镍电池,采用聚合物作电极和电解质材料的研究开发尤为引人注目。但是,目前的锂聚合物电池的离子导电性和机械强度较差,尤其是隔离膜机械强度和离子导电性较差,而且,制造工艺复杂,电池体积较大,电池容量不够,离子电导率和电化学稳定性差。
基于以上技术问题,本发明提供了一种锂聚合物电池,采用多层结构的隔离膜,并采用特殊的制造工艺,使得该锂聚合物电池的离子导电性和机械强度显著增强,而且,通过在正极耳和负极耳的表面设置包覆的镍镀层,能够省去昂贵的转镍设备,降低了电池内阻,大大提高了电池的合格率。
发明内容
本发明的目的是提供一种结构简单、合理,成本低,工艺简单,容量大,机械强度和离子导电性显著提高的一种锂聚合物电池。
为实现上述目的,本发明采用如下技术方案:一种锂聚合物电池,其包括正极板、负极板和隔离膜,其特征在于,所述的正极板包括正极片、正极耳和正极活性物质,其中,所述正极片为铝箔片,所述正极活性物质涂覆在所述铝箔片上,所述正极耳一部分与所述正极片粘结,一部分伸出所述正极片;所述的负极板包括负极片、负极耳和负极活性物质,所述负极片为铜箔片,所述负极活性物质涂覆在所述铜箔片上,所述负极耳一部分与所述负极片粘结,一部分伸出所述负极片,所述正极板和所述负极板之间设置有用于使所述正极板与所述负极板绝缘的所述隔离膜,所述隔离膜为多层结构膜。
进一步,作为优选,所述隔离膜为包括外层膜和内层膜的双层结构,其中,外层膜包括质量分数为70-80%的具有粘结性质的聚偏氟乙烯和质量分数为20%-30%的聚丙烯腈,所述内层膜包括质量分数为20-30%的聚偏氟乙烯、15-20%的细发烟硅粉末和45-55%的邻苯二甲酸二丁酯;所述外层膜与所述内层膜之间采用粘结剂粘结固定在一起。
进一步,作为优选,所述外层膜是以丙酮为溶剂,将质量分数为70-80%的聚偏氟乙烯和质量分数为20%-30%的聚丙烯腈置入磨口锥形瓶中充分混合,在52-54℃的恒温水浴中加热恒温1.2h,冷却到室温排除气泡,然后用刮刀制成厚度为30-45微米的膜。
进一步,作为优选,所述内层膜是以丙酮为溶剂,将质量分数为20-30%的聚偏氟乙烯、15-20%的细发烟硅粉末和45-55%的邻苯二甲酸二丁酯装入密封球磨罐中,在45-48℃的恒温水浴中加热恒温1.2h,然后用球磨机球磨24h,然后用刮刀制成厚度为50-55微末的膜。
进一步,作为优选,所述粘结剂采用改性聚丙烯酸酯类、聚丙烯酸酯类或改性聚乙烯或聚二烯类按照任意比例混合而成。
进一步,作为优选,所述正极耳和所述负极耳的表面设置有包覆的镍镀层。
进一步,作为优选,所述镍镀层为化学镀层,且其厚度为0.1-4微米。
本发明的有益效果在于,本发明提供的一种锂聚合物电池,采用多层结构的隔离膜,并采用特殊的制造工艺,使得该锂聚合物电池的离子导电性和机械强度显著增强,而且,通过在正极耳和负极耳的表面设置包覆的镍镀层,能够省去昂贵的转镍设备,降低了电池内阻,大大提高了电池的合格率。
附图说明
图1是本发明的一种锂聚合物电池的结构示意图;
具体实施方式
以下结合附图来对本发明进行详细的描绘。然而应当理解,附图的提供仅为了更好地理解本发明,它们不应该理解成对本发明的限制。
如图1所示,本发明提供一种锂聚合物电池,其包括正极板、负极板和隔离膜,正极板包括正极片1、正极耳和正极活性物质2,其中,正极片1为铝箔片,正极活性物质2涂覆在铝箔片上,正极耳一部分与正极片1粘结,一部分伸出正极片;负极板包括负极片6、负极耳和负极活性物质7,负极片6为铜箔片,负极活性物质7涂覆在铜箔片上,负极耳一部分与负极片粘结,一部分伸出负极片,正极板和负极板之间设置有用于使正极板与负极板绝缘的隔离膜,隔离膜为多层结构膜。
隔离膜为包括外层膜3和内层膜4的双层结构,其中,外层膜3包括质量分数为70-80%的具有粘结性质的聚偏氟乙烯和质量分数为20%-30%的聚丙烯腈,内层膜4包括质量分数为20-30%的聚偏氟乙烯、15-20%的细发烟硅粉末和45-55%的邻苯二甲酸二丁酯;外层膜3与内层膜4之间采用粘结剂5粘结固定在一起。外层膜3是以丙酮为溶剂,将质量分数为70-80%的聚偏氟乙烯和质量分数为20%-30%的聚丙烯腈置入磨口锥形瓶中充分混合,在52-54℃的恒温水浴中加热恒温1.2h,冷却到室温排除气泡,然后用刮刀制成厚度为30-45微米的膜。
同时,内层膜4是以丙酮为溶剂,将质量分数为20-30%的聚偏氟乙烯、15-20%的细发烟硅粉末和45-55%的邻苯二甲酸二丁酯装入密封球磨罐中,在45-48℃的恒温水浴中加热恒温1.2h,然后用球磨机球磨24h,然后用刮刀制成厚度为50-55微末的膜。
在本实施例中,粘结剂采用改性聚丙烯酸酯类、聚丙烯酸酯类或改性聚乙烯或聚二烯类按照任意比例混合而成。正极耳和所述负极耳的表面设置有包覆的镍镀层。镍镀层为化学镀层,且其厚度为0.1-4微米。
本发明采用多层结构的隔离膜,并采用特殊的制造工艺,使得该锂聚合物电池的离子导电性和机械强度显著增强,而且,通过在正极耳和负极耳的表面设置包覆的镍镀层,能够省去昂贵的转镍设备,降低了电池内阻,大大提高了电池的合格率。
以上实施方式仅用于说明本发明,而并非对本发明的限制,有关技术领域的普通技术人员,在不脱离本发明的精神和范围的情况下,还可以做出各种变化和变型,因此所有等同的技术方案也属于本发明的范畴,本发明的专利保护范围应由权利要求限定。

Claims (5)

1.一种锂聚合物电池,其包括正极板、负极板和隔离膜,其特征在于,所述的正极板包括正极片、正极耳和正极活性物质,其中,所述正极片为铝箔片,所述正极活性物质涂覆在所述铝箔片上,所述正极耳一部分与所述正极片粘结,一部分伸出所述正极片;所述的负极板包括负极片、负极耳和负极活性物质,所述负极片为铜箔片,所述负极活性物质涂覆在所述铜箔片上,所述负极耳一部分与所述负极片粘结,一部分伸出所述负极片,所述正极板和所述负极板之间设置有用于使所述正极板与所述负极板绝缘的所述隔离膜,所述隔离膜为多层结构膜,所述隔离膜为包括外层膜和内层膜的双层结构,其中,外层膜包括质量分数为70-80%的具有粘结性质的聚偏氟乙烯和质量分数为20%-30%的聚丙烯腈,所述内层膜包括质量分数为20-30%的聚偏氟乙烯、15-20%的细发烟硅粉末和45-55%的邻苯二甲酸二丁酯;所述外层膜与所述内层膜之间采用粘结剂粘结固定在一起,所述外层膜是以丙酮为溶剂,将质量分数为70-80%的聚偏氟乙烯和质量分数为20%-30%的聚丙烯腈置入磨口锥形瓶中充分混合,在52-54℃的恒温水浴中加热恒温1.2h,冷却到室温排除气泡,然后用刮刀制成厚度为30-45微米的膜。
2.根据权利要求1所述的一种锂聚合物电池,其特征在于,所述内层膜是以丙酮为溶剂,将质量分数为20-30%的聚偏氟乙烯、15-20%的细发烟硅粉末和45-55%的邻苯二甲酸二丁酯装入密封球磨罐中,在45-48℃的恒温水浴中加热恒温1.2h,然后用球磨机球磨24h,然后用刮刀制成厚度为50-55微米的膜。
3.根据权利要求1所述的一种锂聚合物电池,其特征在于,所述粘结剂采用聚丙烯酸酯类或改性聚乙烯或聚二烯类按照任意比例混合而成。
4.根据权利要求1所述的一种锂聚合物电池,其特征在于,所述正极耳和所述负极耳的表面设置有包覆的镍镀层。
5.根据权利要求4所述的一种锂聚合物电池,其特征在于,所述镍镀层为化学镀层,且其厚度为0.1-4微米。
CN201510224489.5A 2015-05-05 2015-05-05 一种锂聚合物电池 Active CN104882628B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510224489.5A CN104882628B (zh) 2015-05-05 2015-05-05 一种锂聚合物电池

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510224489.5A CN104882628B (zh) 2015-05-05 2015-05-05 一种锂聚合物电池

Publications (2)

Publication Number Publication Date
CN104882628A CN104882628A (zh) 2015-09-02
CN104882628B true CN104882628B (zh) 2017-12-08

Family

ID=53950026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510224489.5A Active CN104882628B (zh) 2015-05-05 2015-05-05 一种锂聚合物电池

Country Status (1)

Country Link
CN (1) CN104882628B (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101154750A (zh) * 2006-09-30 2008-04-02 万向电动汽车有限公司 高倍率凝胶聚合物锂离子动力电池及其制造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6881515B2 (en) * 2001-05-08 2005-04-19 Celgard Inc. Separator for polymer battery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101154750A (zh) * 2006-09-30 2008-04-02 万向电动汽车有限公司 高倍率凝胶聚合物锂离子动力电池及其制造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"聚合物锂离子电池隔膜的研究";崔闻宇;《中国优秀硕士学位论文全文数据库》;20061215;第2页-第42页 *

Also Published As

Publication number Publication date
CN104882628A (zh) 2015-09-02

Similar Documents

Publication Publication Date Title
Zhang et al. Ultrathin and super-tough membrane for anti-dendrite separator in aqueous zinc-ion batteries
Zuo et al. Graphitized carbon fibers as multifunctional 3D current collectors for high areal capacity Li anodes
Yang et al. Synergistic manipulation of Zn2+ ion flux and desolvation effect enabled by anodic growth of a 3D ZnF2 matrix for long‐lifespan and dendrite‐free Zn metal anodes
Yu et al. Nanoflake arrays of lithiophilic metal oxides for the ultra‐stable anodes of lithium‐metal batteries
Zhao et al. Carbon paper interlayers: a universal and effective approach for highly stable Li metal anodes
Fan et al. Solid/solid interfacial architecturing of solid polymer electrolyte–based all‐solid‐state lithium–sulfur batteries by atomic layer deposition
CN106654362B (zh) 复合固态电解质膜、制备方法及锂离子电池
Liu et al. Recent innovative configurations in high-energy lithium–sulfur batteries
CN103956458B (zh) 一种锂离子电池复合正极及其制备方法与在全固态电池中的应用
Li et al. Improved strategies for separators in zinc‐ion batteries
Cao et al. Rationally optimized carbon fiber cloth as lithiophilic host for highly stable Li metal anodes
CN104617272B (zh) 一种多孔硅碳复合材料的制备方法
Voropaeva et al. Recent progress in lithium-ion and lithium metal batteries
CN109004234A (zh) 一种锂离子二次电池
CN109286039A (zh) 一种固态电池电解质膜及其制备方法和带有该电解质膜的固态电池
CN107069043B (zh) 锂离子电池及其制备方法
Zhang et al. Polypropylene separator coated with a thin layer of poly (lithium acrylate‐co‐butyl acrylate) for high‐performance lithium‐ion batteries
Yue et al. A heat resistant and flame-retardant polysulfonamide/polypropylene composite nonwoven for high performance lithium ion battery separator
CN107342421A (zh) 一种高含量吡啶氮掺杂多孔碳负极材料、制备方法及其应用
Jia et al. ZnF2 coated three dimensional Li-Ni composite anode for improved performance
Ryu et al. Dual Buffering Inverse Design of Three‐Dimensional Graphene‐Supported Sn‐TiO2 Anodes for Durable Lithium‐Ion Batteries
CN109950461A (zh) 一种隔膜及其制备方法和电池
CN104393353A (zh) 一种高倍率和长寿命的可充室温钠电池及其制备方法
CN109088031A (zh) 陶瓷涂覆隔膜浆料、陶瓷复合隔膜及其制备方法和应用
CN103972466A (zh) 一种高温锂亚硫酰氯电池的正极及其制备方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
DD01 Delivery of document by public notice

Addressee: Ang Jia Science and Technology Ltd. of Shenzhen

Document name: the First Notification of an Office Action

DD01 Delivery of document by public notice
GR01 Patent grant
GR01 Patent grant