H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/36 (2006.01) H01M 4/40 (2006.01) H01M 10/24 (2006.01) H01M 4/50 (2006.01)
Patent
CA 2640264
Rechargeable galvanic cells are disclosed which comprise a manganese dioxide cathode, a zinc anode and a potassium hydroxide electrolyte wherein the cathode includes additive compounds to increase the cycle life and cumulative discharge capacity of the cell. The additives comprise at least a strontium compound and optionally a barium and/or calcium compound. Cells including the additive(s) desirably have an individual discharge capacity after 50 deep discharge-charge cycles of at least 0.100 Ah/gMnO2.
La présente invention concerne des piles galvaniques rechargeables qui comprennent une cathode au dioxyde de manganèse, une anode de zinc et un électrolyte à l'hydroxyde de potassium, la cathode comprenant des composés additifs afin d'améliorer la durée de vie cyclique et la capacité de décharge cumulative de la pile. Les additifs comprennent au moins un composé de strontium et éventuellement un composé de baryum et/ou de calcium. Les piles comprenant les additif(s) présentent de préférence une capacité de décharge individuelle après 50 cycles de charge/décharge profonds d~au moins 0,100 Ah/gMnO2.
Brunet Robert A.h.
Pure Energy Visions Corporation
LandOfFree
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