Carbonaceous electrode material for secondary battery and...

Details Carbonaceous electrode material for secondary battery and... Carbonaceous electrode material for secondary battery and...

H - Electricity

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M

H01M 10/28 (2006.01) H01M 4/58 (2006.01) H01M 4/96 (2006.01) H01M 10/24 (2006.01) H01M 4/04 (2006.01)

Patent

CA 2186999

A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non- aqueous solvent-type secondary battery, is constituted by a carbonaceous material obtained by carbonizing an organic material of plant origin, and having a pore volume of at least 0.55 ml/g of pores having a pore diameter of at most 5 µm as measured by mercury injection method and a specific surface area of at most 100 m2/g as measured by the nitrogen adsorption BET method. The carbonaceous material may preferably be produced by carbonizing an organic material of plant origin in contact with a flowing inert gas at a temperature of 700 - 1500 °C under a pressure exceeding 10 kPa.

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