High-capacity rechargeable nickel-metal hydride battery and manufacturing method thereof

Abstract

The invention discloses a high-capacity rechargeable nickel-metal hydride battery and a manufacturing method thereof, and belongs to the field of batteries. The high-capacity rechargeable nickel-metalhydride battery comprises the following materials of a battery positive plate, a battery negative plate, a positive tab, a negative tab, an electrolyte, an isolating membrane, a steel shell, a cap and a sealing ring. The battery positive plate is a nickel hydroxide positive plate, and the battery negative plate is a hydrogen storage alloy negative plate. The manufacturing method of the nickel-metal hydride battery in the scheme is simple in step and convenient to operate, the overcharge and overdischarge resistance of the battery can be more effectively improved in the overcharge and overdischarge reaction process, the use safety performance of the battery is greatly improved due to the excellent overcharge and overdischarge resistance, and the problems that a nickel-metal hydride batterymanufacturing process in an existing nickel-metal hydride battery manufacturing technology is very troublesome, so that the nickel-metal hydride battery production efficiency is lower and the safetyperformance is lower, is solved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a large-capacity rechargeable nickel-hydrogen battery and a manufacturing method thereof. Background technique [0002] Ni-MH battery is a kind of storage battery with good performance. Ni-MH battery is divided into high-voltage Ni-MH battery and low-voltage Ni-MH battery. Metal hydrides, also known as hydrogen storage alloys (electrodes are called hydrogen storage electrodes), and the electrolyte is 6mol / L potassium hydroxide solution. As an important direction of hydrogen energy application, nickel-metal hydride batteries are attracting more and more attention. [0003] Due to the fact that fossil fuels are less and less in the large-scale development and utilization of human beings, in recent years, the development and utilization of hydrogen energy has been paid more and more attention. As an important direction of hydrogen energy application, nickel-metal hydride batteries...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a large-capacity rechargeable nickel-metal hydride battery and its manufacturing method, which has the advantages of simple operation and high safety performance, and solves the problem of nickel-hydrogen battery manufacturing technology in the existing nickel-hydrogen battery. The manufacturing process of hydrogen batteries is very troublesome, resulting in low production efficiency and low safety performance of nickel-metal hydride batteries