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US 6,420,071 B1Granted
Method for improving the durability of ion insertion materials
AssigneeMidwest Research Institute
InventorsSe-Hee Lee, C. Edwin Tracy, Hyeonsik M. Cheong
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AssigneeMidwest Research Institute
InventorsSe-Hee Lee, C. Edwin Tracy, Hyeonsik M. Cheong
Estimating the term…
The invention provides a method of protecting an ion insertion material from the degradative effects of a liquid or gel-type electrolyte material by disposing a protective, solid ion conducting, electrically insulating, layer between the ion insertion layer and the liquid or gel-type electrolyte material. The invention further provides liquid or gel-type electrochemical cells having improved durability having a pair of electrodes, a pair of ion insertion layers sandwiched between the pair of electrodes, a pair of solid ion conducting layers sandwiched between the ion insertion layers, and a liquid or gel-type electrolyte material disposed between the solid ion conducting layers, where the solid ion conducting layer minimizes or prevents degradation of the faces of the ion insertion materials facing the liquid or gel-type electrolyte material. Electrochemical cells of this invention having increased durability include secondary lithium batteries and electrochromic devices.
A method of preventing degradation of an ion insertion material, wherein said ion insertion material has a surface which faces a liquid or polymer gel ion conducting material, said method comprising providing a solid ion conducting layer between said surface of said ion insertion material and said liquid or polymer gel ion conducting material.
A method of producing a durable electrochemical cell, comprising:
An electrochemical cell having increased durability, comprising
Dependencies are inferred from the claim text.