【摘要】 采用正交试验方法研究了ＭＨ－Ｎｉ电极的配方、导电剂、添加剂、制片压力、粘结剂等夺种工艺因素对电池循环寿命的影响，并探讨了负极配方、充放电制度、电极极化及镍电极等影响电池循环寿命的原因。研究结果表明，当采用１０．０‰的导电剂、５．０‰的添加剂、ＣＭＣ∶ＰＶＡ＝１．５∶１及５ＭＰａ的制片压力等工艺条件时，制备出的ＭＨ－Ｎｉ电池具有最好的循环寿命，经１Ｃ大电流充放电１２０次后电池的容量仅损失２．５‰。大电流充放电条件下电极极化、镍电极的过早失效以及电解液的大量损耗是导致ＭＨ－Ｎｉ电池循环寿命下降的主要原因。更多还原

【Abstract】 The effects of various technology factors such as conductor,additives,pressure and binders on performances of the cycle life of the metal hydride batteries were studied by means of orthogonal test method in this paper.And the reasons affecting the cycle life of the batteries such as the formula of the hydride storage electrode,the charge and discharge regime,polarization and the nickel electrode were discussed.The results showed that the better cycle life of Ni MH batteries was obtained by using 10.0‰ conductive,5.0‰ additives,CMC∶PVA=1.5∶1 and 5MPa pressure for the metal hydride electrode.The capacity decreased only 2.5‰ after 120 cycles at 1C.The decay of the cycle life is mainly caused by the electrode polarization,the early failure of nickel electrode and the electrolyte dissipate.更多还原