Plastic crystal electrolyte with a broad potential window

Details Plastic crystal electrolyte with a broad potential window Plastic crystal electrolyte with a broad potential window

H - Electricity

01

M

H01M 10/0565 (2010.01) H01M 4/13 (2010.01) H01G 9/058 (2006.01)

Patent

CA 2686890

A solid ionic electrolyte having an organic plastic crystal solvent (e.g. succinonitrile) doped with lithium bioxalato borate salt (LiBOB) may be used in an electrochemical device. Electrochemical devices are disclosed having a cathode, an anode, and a solid ionic electrolyte having a neutral organic plastic crystal solvent doped with LiBOB alone or in combination with another lithium salt. Such devices have a stable electrolyte interface over a broad potential window combined with high energy density delivery capacity and, in one example, the favourable properties of a neutral organic plastic crystal matrix such as succinonitrile.

L'invention concerne un électrolyte ionique solide renfermant un solvant cristal plastique organique (par exemple du succinonitrile) dopé par un sel bioxalato borate de lithium (LiBOB) et pouvant être utilisé dans un dispositif électrochimique. Sont décrits des dispositifs électrochimiques ayant une cathode, une anode et un électronique ionique solide avec un solvant cristal plastique organique neutre dopé par LiBOB seul ou en combinaison avec un autre sel de lithium. De tels dispositifs ont une interface d'électrolyte stable sur une large fenêtre de potentiel combinée à une grande capacité de distribution de densité d'énergie et, dans un exemple, possèdent les propriétés favorables d'une matrice cristal plastique organique neutre, telle que le succinonitrile.

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