Nonaqueous electrolyte and lithium secondary battery comprising same
A non-aqueous electrolyte with a polymer compound improves silicon-based lithium secondary battery durability by forming a resilient film that withstands volume changes, addressing conductivity and high-temperature issues.
WO2026135382A1PCT designated stage Publication Date: 2026-06-25LG ENERGY SOLUTION LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2025-12-19
- Publication Date
- 2026-06-25
Smart Images
Figure PCTKR2025022428-APPB-IMG-000001 
Figure PCTKR2025022428-APPB-IMG-000002 
Figure PCTKR2025022428-APPB-IMG-000003
Abstract
The present invention provides a nonaqueous electrolyte comprising a lithium salt, an organic solvent, and an additive, the additive comprising a polymer compound comprising a repeating unit represented by chemical formula 1 below and a repeating unit represented by chemical formula 2 below. The specific description of the repeating unit represented by chemical formula 1 and the repeating unit represented by chemical formula 2 is as disclosed in the present specification.
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