Electrolytes for Lithium Ion Batteries and Their Fabrication Methods
AssigneeBYD Company Limited
InventorsFeng Xiao, Mingxia Wang, Guishu Zhou, Huaying You
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Abstract
Electrolytes for lithium ion batteries are provided. The electrolytes include lithium salts, organic solvents and additives. In particular, the additives include halogeno-benzene and/or its homologs, the S═O bond compounds, biphenyl and/or its homologs, phenylcyclohexane and/or its homologs, teraklylbenzenes, and di-cycladipate and/or its homologs. Lithium ion batteries using said electrolytes exhibit improved overcharging safety properties, high temperature storage stability properties and cycle life properties simultaneously.
Claims17
An electrolyte having an additive wherein the additive comprises:
- at least one of halogeno-benzene or its homolog;
- S═O bond compound;
- at least one of biphenyl or its homolog;
- at least one of phenylcyclohexane or its homolog;
- teraklylbenzene;
- and
- at least one of di-cycladipate or its homolog.
A method for fabricating an electrolyte, comprising the steps of:
- mixing a lithium salt, an organic solvent and an additive together wherein the additive comprises:
- at least one of halogeno-benzene or its homolog;
- S═O bond compound;
- at least one of biphenyl or its homolog;
- at least one of phenylcyclohexane or its homolog;
- teraklylbenzene;
- and
- at least one of di-cycladipate or its homolog.
Dependencies are inferred from the claim text.