摘要：本文討論閥控鉛酸蓄電池失效的主要原因，包括板柵腐蝕、板柵生長、水損失、電解液層化、熱失控、單體電池不均衡、內阻增大、酸密度、氣體復合效率。為了延長使用壽命，提出相應的解決方法。 敘詞：VRLA蓄電池 使用壽命 失效 Abstract：The major causes of failure of VRLA batteries, including grid corrosion, grid growth ,water loss, electrolyte　stratification, thermal runwaycell imbalance, resistance increase, acid densitygas recombination efficiencyare discussed in this paper. In order to extend service life of VRLA batteries, the solution methods were raised. Keyword：valve regulated lead acid(VRLA) battery service life failure