Patent ID: 7572548
Filing Date: 2009-08-11
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A method of manufacturing a non-aqueous electrolyte battery having a positive electrode including a positive electrode active material-layer stack and a positive electrode current collector, the positive electrode active material-layer stack being formed on a surf ace of the positive electrode current collector and comprising a plurality of positive electrode active material layers containing a plurality of positive electrode active materials, a negative electrode including a negative electrode active material layer, and a separator interposed between the electrodes, the method comprising: a first step of causing particles of a positive electrode active material having the highest resistance increase rate among the plurality of positive electrode active materials to adhere to a surface of the positive electrode current collector using a cold spraying method, to form one of the positive electrode active material layers; a second step of applying another one or more of the plurality of positive electrode active materials onto a surface of the one of the positive electrode active material layers to form one or more other positive electrode active material layers, whereby the positive electrode is prepared; and a third step of arranging the positive electrode and the negative electrode and interposing the separator therebetween.