Low-temperature electrolyte for local weak solvation lithium metal battery

Low-temperature electrolyte for local weak solvation lithium metal battery

The invention discloses a low-temperature electrolyte for a local weak solvation lithium metal battery, which is characterized in that an ester-based solvent with a melting point lower than-70 DEG C is used as a main solvent, an ether-based solvent with weak solvation capability is used as an auxili...

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Hauptverfasser: YANG CHENYU, ZHU LIANG, WANG QICHAO, ZHAO YAO, GAN JUNYI, ZHOU TENGFEI
Format: Patent
Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator YANG CHENYU
ZHU LIANG
WANG QICHAO
ZHAO YAO
GAN JUNYI
ZHOU TENGFEI
description The invention discloses a low-temperature electrolyte for a local weak solvation lithium metal battery, which is characterized in that an ester-based solvent with a melting point lower than-70 DEG C is used as a main solvent, an ether-based solvent with weak solvation capability is used as an auxiliary solvent, and an inert diluent, an additive and a lithium salt are added. The electrolyte provided by the invention can effectively improve the cycle performance and energy density of the lithium metal battery in a low-temperature environment under the regulation and control of the proportion of the lithium salt, the main solvent, the auxiliary solvent and the inert diluent, and is simple in process and convenient in flow. 本发明公开了一种局部弱溶剂化锂金属电池用低温电解液，该低温电解液以熔点低于-70℃的酯基溶剂为主溶剂，以具有弱溶剂化能力的醚基溶剂为副溶剂，并加入有惰性稀释剂、添加剂和锂盐。本发明的电解液在锂盐、主溶剂、副溶剂、惰性稀释剂的比例调控下，可以有效提高锂金属电池在低温环境下的循环性能和能量密度，且工艺简单、流程便捷。
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The electrolyte provided by the invention can effectively improve the cycle performance and energy density of the lithium metal battery in a low-temperature environment under the regulation and control of the proportion of the lithium salt, the main solvent, the auxiliary solvent and the inert diluent, and is simple in process and convenient in flow. 本发明公开了一种局部弱溶剂化锂金属电池用低温电解液，该低温电解液以熔点低于-70℃的酯基溶剂为主溶剂，以具有弱溶剂化能力的醚基溶剂为副溶剂，并加入有惰性稀释剂、添加剂和锂盐。本发明的电解液在锂盐、主溶剂、副溶剂、惰性稀释剂的比例调控下，可以有效提高锂金属电池在低温环境下的循环性能和能量密度，且工艺简单、流程便捷。</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>2024</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=20240830&amp;DB=EPODOC&amp;CC=CN&amp;NR=118572193A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20240830&amp;DB=EPODOC&amp;CC=CN&amp;NR=118572193A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YANG CHENYU</creatorcontrib><creatorcontrib>ZHU LIANG</creatorcontrib><creatorcontrib>WANG QICHAO</creatorcontrib><creatorcontrib>ZHAO YAO</creatorcontrib><creatorcontrib>GAN JUNYI</creatorcontrib><creatorcontrib>ZHOU TENGFEI</creatorcontrib><title>Low-temperature electrolyte for local weak solvation lithium metal battery</title><description>The invention discloses a low-temperature electrolyte for a local weak solvation lithium metal battery, which is characterized in that an ester-based solvent with a melting point lower than-70 DEG C is used as a main solvent, an ether-based solvent with weak solvation capability is used as an auxiliary solvent, and an inert diluent, an additive and a lithium salt are added. 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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Low-temperature electrolyte for local weak solvation lithium metal battery
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