United Kingdom Atomic Energy Authority

Robin J Neat

Esam Kronfli

Alan Hooper

William J Macklin

Keith V Lovell

Raymond J Powell

Titanium dioxide-based material

A secondary electrochemical cell is made by

Electrochemical cell manufacture

A solid polymer electrolyte is in the form of a gel comprising a complex of a solid polymer (e.g. poly(ethene oxide) and an alkali metal salt (e.g. LiClO.sub.4), the polymer being cross-linked to inhibit its transformation from an amorphous form to a crystalline form thereby to improve the alkali metal ion conductivity of the electrolyte at lower temperatures. The electrolyte may be made by irradiating (e.g. by gamma radiation or an electron beam) a solution, preferably aqueous, of the complex to cause the polymer to cross-link and form a gel. The electrolyte may be used as a component in a solid state electrochemical cell (e.g. for a rechargeable lithium battery), where the gel form of the electrolyte assists fabrication.

Polymer electrolytes

Growing community of inventors

Kennington, United Kingdom

Robin J Neat