The sintered cadmium-nickel storage battery is an ultra-high-rate storage battery developed by our company. It is mainly used in starting and traction DC power supply systems in fields such as aerospace, rail transit, and petroleum and petrochemical industries. The discharge current of the storage battery can reach 20 I_tA or more. The applicable temperature range is -40°C to 70°C. In addition, it has the characteristics of low self-discharge, high specific energy per unit weight and volume, strong resistance to electrical misoperation, long cycle life, high mechanical strength, high safety factor, strong resistance to impact and vibration, and long maintenance-free period.