Polymer electrolyte

Example

Use in Lemonergy

Connect transport with electronic isolation.

This is a reference concept. No executable Lemonergy block has been verified for this term.

Learn it in Lesson 3B · Solid-state production →

Connected concepts

Related concepts from the knowledge graph. Connections show context, not cause and effect. Hover or focus a linked term for its definition.

Gel polymer electrolyte

A polymer matrix swollen with liquid electrolyte, so the cell behaves like a liquid cell but does not leak. It is what most “lithium polymer” pouch cells actually contain, and what “semi-solid” cells use.

Ionic conductivity

How readily an electrolyte carries ions, in siemens per centimetre. Liquid carbonate electrolytes reach about 10 mS/cm at room temperature; the best sulfide solid electrolytes match that, while polymers fall far short unless heated.

Lithium bis(trifluoromethanesulfonyl)imide

A very stable imide salt used in polymer and solid-state electrolytes and in research cells. Like LiFSI it attacks aluminium current collectors above about 3.7 V, which keeps it out of mainstream liquid cells.

Solid electrolyte

A solid ion conductor that replaces the liquid electrolyte in an all-solid-state cell. Oxide, sulfide, halide and polymer families each need a different production route.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. Electrolytes and Interphases in Li-Ion Batteries and Beyond

   Kang Xu · Chemical Reviews · 2014

   Topic background · Electrolyte salts, solvents, additives and electrode interphases.