| abstract |
A lithium battery having a large capacity by increasing a filling rate of a positive electrode active material in a positive electrode layer is provided. A lithium battery includes a positive electrode layer and a negative electrode layer that occlude and release lithium, and an electrolyte layer that mediates lithium ion conduction between these layers. The positive electrode active material contained in the positive electrode layer of the lithium battery has two or more distribution amount peaks in the particle size distribution. By adopting such a configuration, since the active material having a small particle size is arranged so as to fill the gap between the active materials having a large particle size in the positive electrode layer, the proportion of the active material in the positive electrode layer (filling rate) Becomes higher. As a result, when comparing the lithium battery of the present invention having the same thickness of the positive electrode layer and the conventional lithium battery, the lithium battery of the present invention has a higher discharge capacity. [Selection figure] None |