| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an alkali battery superior in heavy load discharge performance.SOLUTION: An alkali battery 1 comprises: a positive electrode mixture 21 put in a bottomed cylindrical positive electrode can 11; a separator 22 provided on the inner peripheral side of the positive electrode mixture 21; a negative electrode mixture 23 including powder including zinc as a primary component, and filled on the inner peripheral side of the separator 22; a negative electrode current collector 31 inserted in the negative electrode mixture 23; a negative electrode terminal plate 32 for sealing the opening of the positive electrode can 11; and an electrolytic solution including a potassium hydroxide. The concentration of potassium hydroxide included in the positive electrode mixture 21 is made larger than the concentration of potassium hydroxide included in the negative electrode mixture 23. As the powder, powder including particles having a particle size of 75μm or less by 25-40 mass% is used. It is more preferable that the potassium hydroxide concentration of the positive electrode mixture 21 is in a range of 35-50 mass%, and the potassium hydroxide concentration of the negative electrode mixture 23 is in a range of 30-45 mass%.</p> |
