| 摘要 |
PURPOSE:To increase the discharge capacity by using those in which lithium hydroxide is contained in the crystals of an electrolytic manganese dioxide as a positive electrode active material. CONSTITUTION:Those in which lithium hydroxide is contained in crystals of an electrolytic manganese dioxide is used as a positive electrode active material. The charge and discharge by manganese dioxide is accompanied by the going in and out of lithium ion. However, as lithium hydroxide is preliminarily contained in manganese dioxide crystals to swell the crystals preliminarily even in the state in which the crystals of manganese dioxide is not charged nor discharged, the volume change accompanied by the going in and out of lithium in the charge and discharge is made smaller than the case when the electrolytic manganese dioxide is used independently. At a result, the swelling and shrinkage by charge and discharge is extremely reduced to maintain the contact between the crystals and with a conductive agent at a satisfactory state, and thus almost the manganese dioxide is used for the reaction. Hence, the discharge capacity can be increased. |
