| 摘要 |
PURPOSE:To obtain a sealed alkaline battery, in which the leakage of alkaline electrolyte can be securely prevented under a restricted space condition, by preparing a sealing agent by blending a hardening agent into an epi-bis-type epoxy resin so that the epoxy resin is given 15-5% of its epoxy equivalent of reaction groups. CONSTITUTION:As a hardening agent, a polyamide resin having a reactive polyamide group is used. An epi-bis-type epoxy resin blended with less than an equal equivalent of such a hardening agent as above, doesn't harden completely even after a long period of time, and continues to exist between a terminal 1 and a sealing gasket 4 in an almost semi-hardened state. As a result, sealing interfaces 6a and 6b, which are suitable for preventing the leakage of alkaline electrolyte, respectively, are formed between a sealing gasket 4 and a sealing agent 6 and between a terminal 1 and the sealing agent 6. Besides, thus formed sealing interfaces 6a and 6b are maintained over a long period of time. |
