H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/37
H01M 10/34 (2006.01) H01M 10/24 (2006.01)
Patent
CA 2037744
RECHARGEABLE ALKALINE MANGANESE CELL HAVING IMPROVED CAPACITY AND IMPROVED ENERGY DENSITY ABSTRACT OF THE DISCLOSURE: A rechargeable alkaline manganese cell is provided, having improved capacity and improved energy density. The cell is anode limited, and each of the anode and cathode is physically dimensioned so that the anode has a capacity in the range of from about 45% to about 100% of the capacity of the cathode. The gravimetric energy density of the cell exceeds 70 Wh/kg, and the volumetric energy density of the cell exceeds 200 Wh/litre. Each of the anode and cathode may comprise additional additives. For example, the cathode may include additional hydrophobic materials and a porous additive such as carbon black so as to improve gas transport of hydrogen gas into the cathode where it is oxidized; and the anode may comprise hydrogen gassing inhibitors as well as oxygen gas recombining agents.
Book James R.
Findlay Robert D.
Tomantschger Klaus
Battery Technologies Inc.
Mccarthy Tetrault Llp
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