Novel soft materials based on boron compounds

Abstract

Novel soft materials based on boron compounds. Soft solid state electrolyte compositions for secondary electrochemical cell are composed of a metal salt dispersed or doped in a soft solid matrix. Thematrix includes an organic cation and a boron cluster anion. The metal salt has a metal cation and an anion. Compared with competing solid electrolytes, the disclosed electrolyte compositions are soft, allowing for lower molding pressures and showing high ionic conductivity.

Description

technical field [0001] The present disclosure generally relates to soft solid electrolytes for use in secondary batteries, and to boron cluster chemistry. Background technique [0002] Solid electrolytes offer many advantages in secondary battery design, including mechanical stability, lack of volatility, and ease of construction. Existing inorganic solid-state electrolytes that exhibit high ionic conductivity are generally hard materials that fail to maintain appreciable contact with electrode materials during battery cycling. Organic solid electrolytes such as polymers overcome the latter problem due to their reduced hardness; however, these suffer from poor ionic conductivity. [0003] Those solid-state electrolytes with appreciable ionic conductivity are usually based on organic ionic liquid crystals (OIPCs). These materials rely on solid-solid phase transitions to achieve high conductivity. OIPC-based materials can suffer from difficulties including a low temperature...

AI Technical Summary

Problems solved by technology

OIPC-based materials can suffer from difficulties, including a low temperature window and / or low melting point of the conducting phase that limit their applicability

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