Electrolyte containing phosphite lithium salt flame-retardant additive and lithium ion battery

The invention relates to an electrolyte containing a phosphite lithium salt flame-retardant additive. The electrolyte comprises 2%-20% of a lithium salt, 0.1%-10% of the phosphite lithium salt flame-retardant additive, 0.1%-10% of a film-forming additive and 70%-90% of a non-aqueous organic solvent....

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Hauptverfasser: SHANG DEHUA, WANG YAFEI
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WANG YAFEI
description The invention relates to an electrolyte containing a phosphite lithium salt flame-retardant additive. The electrolyte comprises 2%-20% of a lithium salt, 0.1%-10% of the phosphite lithium salt flame-retardant additive, 0.1%-10% of a film-forming additive and 70%-90% of a non-aqueous organic solvent. The lithium ion battery comprises a positive electrode, a negative electrode, a diaphragm and the electrolyte. The electrolyte disclosed by the invention has the characteristic of noninflammability and is relatively low in viscosity; the lithium ion battery using the electrolyte provided by the invention has relatively high specific discharge capacity, and thermal runaway does not occur in a thermal shock test. 本发明涉及一种含亚磷酸酯锂盐阻燃添加剂的电解液,包括2%-20%的锂盐、0.1%-10%的亚磷酸酯锂盐阻燃添加剂、0.1%-10%的成膜添加剂、以及70%-90%的非水有机溶剂。一种锂离子电池,包括正极、负极、隔膜和所述的电解液。本发明的电解液具有不燃的特性,且粘度较低;使用本发明电解液的锂离子电池具有较高的放电比容量,在进行热冲击试验时都未发生热失控。
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The electrolyte comprises 2%-20% of a lithium salt, 0.1%-10% of the phosphite lithium salt flame-retardant additive, 0.1%-10% of a film-forming additive and 70%-90% of a non-aqueous organic solvent. The lithium ion battery comprises a positive electrode, a negative electrode, a diaphragm and the electrolyte. The electrolyte disclosed by the invention has the characteristic of noninflammability and is relatively low in viscosity; the lithium ion battery using the electrolyte provided by the invention has relatively high specific discharge capacity, and thermal runaway does not occur in a thermal shock test. 本发明涉及一种含亚磷酸酯锂盐阻燃添加剂的电解液,包括2%-20%的锂盐、0.1%-10%的亚磷酸酯锂盐阻燃添加剂、0.1%-10%的成膜添加剂、以及70%-90%的非水有机溶剂。一种锂离子电池,包括正极、负极、隔膜和所述的电解液。本发明的电解液具有不燃的特性,且粘度较低;使用本发明电解液的锂离子电池具有较高的放电比容量,在进行热冲击试验时都未发生热失控。</description><language>chi ; eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20220726&amp;DB=EPODOC&amp;CC=CN&amp;NR=114792841A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20220726&amp;DB=EPODOC&amp;CC=CN&amp;NR=114792841A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHANG DEHUA</creatorcontrib><creatorcontrib>WANG YAFEI</creatorcontrib><title>Electrolyte containing phosphite lithium salt flame-retardant additive and lithium ion battery</title><description>The invention relates to an electrolyte containing a phosphite lithium salt flame-retardant additive. The electrolyte comprises 2%-20% of a lithium salt, 0.1%-10% of the phosphite lithium salt flame-retardant additive, 0.1%-10% of a film-forming additive and 70%-90% of a non-aqueous organic solvent. The lithium ion battery comprises a positive electrode, a negative electrode, a diaphragm and the electrolyte. The electrolyte disclosed by the invention has the characteristic of noninflammability and is relatively low in viscosity; the lithium ion battery using the electrolyte provided by the invention has relatively high specific discharge capacity, and thermal runaway does not occur in a thermal shock test. 本发明涉及一种含亚磷酸酯锂盐阻燃添加剂的电解液,包括2%-20%的锂盐、0.1%-10%的亚磷酸酯锂盐阻燃添加剂、0.1%-10%的成膜添加剂、以及70%-90%的非水有机溶剂。一种锂离子电池,包括正极、负极、隔膜和所述的电解液。本发明的电解液具有不燃的特性,且粘度较低;使用本发明电解液的锂离子电池具有较高的放电比容量,在进行热冲击试验时都未发生热失控。</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAQgOEuDqK-w_kAHaIFdZRScXJytpzJ1Rykl5CcQt9eB3F2-uHnm1e3LpDVHMOkBDaKIgvLA5KPJXn-zMDq-TlCwaAwBBypzqSYHYoCOsfKLwIU95McBe6oSnlaVrMBQ6HVt4tqfequ7bmmFHsqCS0Jad9ejGl2h82-McftP-YNwbc9eg</recordid><startdate>20220726</startdate><enddate>20220726</enddate><creator>SHANG DEHUA</creator><creator>WANG YAFEI</creator><scope>EVB</scope></search><sort><creationdate>20220726</creationdate><title>Electrolyte containing phosphite lithium salt flame-retardant additive and lithium ion battery</title><author>SHANG DEHUA ; WANG YAFEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114792841A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>SHANG DEHUA</creatorcontrib><creatorcontrib>WANG YAFEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHANG DEHUA</au><au>WANG YAFEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Electrolyte containing phosphite lithium salt flame-retardant additive and lithium ion battery</title><date>2022-07-26</date><risdate>2022</risdate><abstract>The invention relates to an electrolyte containing a phosphite lithium salt flame-retardant additive. 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ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Electrolyte containing phosphite lithium salt flame-retardant additive and lithium ion battery
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