Energy storage devices

H - Electricity – 01 – M

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H01M 10/26 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2518923

Pyrrolidinium based room temperature ionic liquids, and phosphorous and arsenic analogues, are used as electrolytes in energy storage devices including secondary lithium batteries, supercapacitors and asymmetric battery- supercapacitors. The electrolytes preferably contain lithium ions as the charge-carrying species. The electrolytes are in a liquid state at the operating temperature.

L'invention concerne des liquides ioniques à base de pyrrolidinium, à température ambiante, y compris des analogues phosphoreux et arséniques, utilisés comme électrolytes dans des dispositifs de stockage d'énergie, par exemple des batteries secondaires au lithium, des supercondensateurs et des batteries-supercondensateurs de type asymétrique. De préférence, les électrolytes renferment des ions lithium qui tiennent lieu de porteurs de charge. Il s'agit d'électrolytes à l'état liquide en température d'exploitation.

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