Solid electrolyte battery

摘要

A solid electrolyte battery is disclosed which is capable of raising an energy density without deterioration of discharge load characteristics thereof, incorporating a wound electrode incorporating a positive electrode incorporating an elongated positive-electrode collector having two sides on which positive-electrode active material layers are formed, a negative electrode incorporating an elongated negative-electrode collector having two sides on which negative-electrode active material layers are formed and a solid electrolyte layer formed between the positive electrode and the negative electrode such that the positive electrode and the negative electrode are laminated and wound, wherein when an assumption is made that the total thickness of a pair of the positive-electrode active material layers formed on the two sides of the collector for the positive electrode is total film thickness A and the total thickness of a pair of the negative-electrode active material layers formed on the two sides of the collector for the negative electrode is total thickness B, the total film thickness A of the positive-electrode active material layers satisfies a range from 60 mu m to 150 mu m, and ratio A/B of the total film thickness A of the positive-electrode active material layers with respect to the total thickness B of the negative-electrode active material layers satisfies a range from 0.5 to 1.2.