| abstract |
An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length L core and a width W core and each connector has a width W connector . The length of the coiled core L core , width of the coiled core W core , and width of each connector W connector have the relationship 0<(W core -W connector )/L core <0.37. |