CPC H01M 4/381 (2013.01) [H01M 4/133 (2013.01); H01M 4/136 (2013.01); H01M 4/382 (2013.01); H01M 4/40 (2013.01); H01M 4/48 (2013.01); H01M 4/582 (2013.01); H01M 4/5825 (2013.01); H01M 4/587 (2013.01); H01M 4/621 (2013.01); H01M 4/622 (2013.01); H01M 4/661 (2013.01); H01M 4/808 (2013.01); H01M 10/0525 (2013.01); H01M 10/0563 (2013.01); H01M 2004/021 (2013.01); H01M 4/0404 (2013.01); H01M 4/0435 (2013.01); H01M 4/1393 (2013.01); H01M 4/1397 (2013.01); H01M 10/054 (2013.01); H01M 2300/002 (2013.01)] | 20 Claims |
1. A rechargeable electrochemical battery cell, comprising:
a housing;
a positive electrode;
a negative electrode; and
an electrolyte containing SO2 and a conductive salt of the active metal of the cell, wherein the electrolyte contains at least 1.5 mol SO2 per mol conducting salt;
wherein the electrolyte is based on SO2 and the mobility of the ions of the conducting salt is at least partially guaranteed by SO2;
wherein at least one of the electrodes contains a binder comprising a polymer based on monomeric styrene or butadiene structural units; and
wherein the binder is present in an amount effective to reduce capacity loss and no more than 8 wt %.
|