Electrolyte for lithium secondary batteries with improved low temperature performance and lithium secondary battery including the same

  • US 10,573,921 B2
  • Filed: 12/02/2015
  • Issued: 02/25/2020
  • Est. Priority Date: 12/02/2014
  • Status: Active Grant
First Claim
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1. An electrolyte for lithium secondary batteries, consisting of:

  • a non-aqueous solvent and a lithium salt,wherein the non-aqueous solvent consists of;

    25 to 45% by weight of a cyclic carbonate compound; and

    55 to 75% by weight of a linear ester compound,the linear ester compound is a mixture of ethyl propionate and propyl propionate, andthe content of ethyl propionate is 25 to 35% by weight, and the content of propyl propionate is 30 to 40% by weight, based on the total weight of the non-aqueous solvent.

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