CN106099189A - 安全防燃防爆的电解液 - Google Patents

安全防燃防爆的电解液 Download PDF

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CN106099189A
CN106099189A CN201610598341.2A CN201610598341A CN106099189A CN 106099189 A CN106099189 A CN 106099189A CN 201610598341 A CN201610598341 A CN 201610598341A CN 106099189 A CN106099189 A CN 106099189A
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electrolyte
weight
proof
solvent
explosion prevention
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秦传保
汪桂云
张承平
宋永胜
陆跃
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WUHU KAIER ELECTRICAL SCIENCE & TECHNOLOGY Co Ltd
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WUHU KAIER ELECTRICAL SCIENCE & TECHNOLOGY Co Ltd
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    • 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
    • H01M10/0566Liquid materials
    • H01M10/0567Liquid materials characterised by the additives
    • 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
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/0566Liquid materials
    • H01M10/0569Liquid materials characterised by the solvents
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00Electrolytes
    • H01M2300/0017Non-aqueous electrolytes
    • H01M2300/0025Organic electrolyte
    • H01M2300/0028Organic electrolyte characterised by the solvent
    • H01M2300/0037Mixture of solvents
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
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  • Materials Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

本发明的目的是提供一种安全防燃防爆的电解液,包括有锂离子电解质,采用二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液作为溶剂,循环性能优异,热稳定性好,采用磷酸三苯酯和4‑异丙基苯基二苯基磷酸酯可以保证电解液的热稳定性能并且阻燃效果优异,可以有效的防燃防爆,性能优异。

Description

安全防燃防爆的电解液
技术领域
本发明涉及锂离子电池领域,尤其涉及一种安全防燃防爆的电解液。
背景技术
电解液是锂离子电池四大关键材料(正极、负极、隔膜、电解液)之一,号称锂离子电池的“血液”,在电池中正负极之间起到传导电子的作用,是锂离子电池获得高电压、高比能等优点的保证。电解液一般由高纯度的有机溶剂、电解质锂盐(六氟磷酸锂,LiFL6)、必要的添加剂等原料,在一定条件下,按一定比例配制而成的。目前对于锂离子电池来说,常常会发生电池自燃爆炸的危险,因此电解液的安全性能十分重要,因此解决上述问题就显得十分必要了。
发明内容
为解决上述问题,本发明提供一种安全防燃防爆的电解液,采用二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液作为溶剂,循环性能优异,热稳定性好,采用磷酸三苯酯和4-异丙基苯基二苯基磷酸酯可以保证电解液的热稳定性能并且阻燃效果优异,可以有效的防燃防爆,解决了背景技术中出现的问题。
本发明的目的是提供一种安全防燃防爆的电解液,包括有锂离子电解质,
还包括有以下溶剂:二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液,还还包括有以下添加剂:磷酸三苯酯,4-异丙基苯基二苯基磷酸酯。
进一步改进在于:所述二氟代乙酸甲酯和二氟代乙酸乙酯体积比为(3-5):1;
进一步改进在于:所述溶剂的重量为溶剂加上添加剂重量的(80-90)%;所述磷酸三苯酯的重量为溶剂加上添加剂重量的(5-10)%;所述4-异丙基苯基二苯基磷酸酯的重量为溶剂加上添加剂重量的(5-10)%。
本发明的有益效果:本发明采用二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液作为溶剂,循环性能优异,热稳定性好,采用磷酸三苯酯和4-异丙基苯基二苯基磷酸酯可以保证电解液的热稳定性能并且阻燃效果优异,可以有效的防燃防爆,性能优异。
具体实施方式
为了加深对本发明的理解,下面将结合实施例对本发明作进一步详述,该实施例仅用于解释本发明,并不构成对本发明保护范围的限定。
一种安全防燃防爆的电解液,包括有锂离子电解质,
还包括有以下溶剂:二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液,还还包括有以下添加剂:磷酸三苯酯,4-异丙基苯基二苯基磷酸酯。
实施例一:
所述二氟代乙酸甲酯和二氟代乙酸乙酯体积比为3:1;所述溶剂的重量为溶剂加上添加剂重量的80%。所述磷酸三苯酯的重量为溶剂加上添加剂重量的10%。所述4-异丙基苯基二苯基磷酸酯的重量为溶剂加上添加剂重量的10%。
实施例二:
所述二氟代乙酸甲酯和二氟代乙酸乙酯体积比为4:1;所述溶剂的重量为溶剂加上添加剂重量的85%。所述磷酸三苯酯的重量为溶剂加上添加剂重量的7%。所述4-异丙基苯基二苯基磷酸酯的重量为溶剂加上添加剂重量的8%。
实施例三:
所述二氟代乙酸甲酯和二氟代乙酸乙酯体积比为5:1;所述溶剂的重量为溶剂加上添加剂重量的90%。所述磷酸三苯酯的重量为溶剂加上添加剂重量的5%。所述4-异丙基苯基二苯基磷酸酯的重量为溶剂加上添加剂重量的5%。
以上实施例采用二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液作为溶剂,循环性能优异,热稳定性好,采用磷酸三苯酯和4-异丙基苯基二苯基磷酸酯可以保证电解液的热稳定性能并且阻燃效果优异,可以有效的防燃防爆,性能优异。

Claims (3)

1.一种安全防燃防爆的电解液,包括有锂离子电解质,其特征在于:
还包括有以下溶剂:二氟代乙酸甲酯和二氟代乙酸乙酯混合溶液,还还包括有以下添加剂:磷酸三苯酯,4-异丙基苯基二苯基磷酸酯。
2.如权利要求1所述安全防燃防爆的电解液,其特征在于:所述二氟代乙酸甲酯和二氟代乙酸乙酯体积比为(3-5):1。
3.如权利要求1所述安全防燃防爆的电解液,其特征在于:所述溶剂的重量为溶剂加上添加剂重量的(80-90)%;所述磷酸三苯酯的重量为溶剂加上添加剂重量的(5-10)%;所述4-异丙基苯基二苯基磷酸酯的重量为溶剂加上添加剂重量的(5-10)%。
CN201610598341.2A 2016-07-27 2016-07-27 安全防燃防爆的电解液 Pending CN106099189A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101740814A (zh) * 2009-12-16 2010-06-16 北京理工大学 一种离子液体电解质材料
CN102683746A (zh) * 2012-05-04 2012-09-19 百顺松涛(天津)动力电池科技发展有限公司 锂电池电解液添加剂以及采用该添加剂的电解液和电池
CN102832408A (zh) * 2012-09-18 2012-12-19 广州天赐高新材料股份有限公司 具有高阻燃性能和电化学性能的电解液及锂离子电池
CN103682528A (zh) * 2012-09-14 2014-03-26 丰田自动车株式会社 用于金属-空气电池的电解质和金属-空气电池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101740814A (zh) * 2009-12-16 2010-06-16 北京理工大学 一种离子液体电解质材料
CN102683746A (zh) * 2012-05-04 2012-09-19 百顺松涛(天津)动力电池科技发展有限公司 锂电池电解液添加剂以及采用该添加剂的电解液和电池
CN103682528A (zh) * 2012-09-14 2014-03-26 丰田自动车株式会社 用于金属-空气电池的电解质和金属-空气电池
CN102832408A (zh) * 2012-09-18 2012-12-19 广州天赐高新材料股份有限公司 具有高阻燃性能和电化学性能的电解液及锂离子电池

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Title
李贺等: ""锂离子电池电解液阻燃添加剂的研究进展"", 《电源技术》 *

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Application publication date: 20161109