| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a sealed hydrogen battery capable of suppressing decrease in charged reserve of a hydrogen storage alloy electrode (negative electrode) and increase in internal pressure of a battery. SOLUTION: An organic polymer material containing ether linkage (-O-) such as polyethylene oxide, polypropylene oxide, and polybutylene oxide has good hydrophilic nature, in addition has high oxidation resistance compared with OH group (-OH), oxidation decomposition in a positive electrode hardly occurs, and hydrogen evolution caused by oxidation decomposition is remarkably reduced. Decrease in charged reserve of a negative electrode caused by oxidation decomposition of a thickening agent or a binder, increase in internal pressure of a battery, and shortening of cycle life of the battery are prevented. |
