Technological innovation is the key to promoting the development of  hydride energy storage batteries, and in recent years, significant progress has been made in this field.

In terms of material technology, researchers are constantly exploring new electrode materials to improve the performance of Ni - MH batteries. For the positive electrode, the development of high - performance nickel - based materials aims to increase the energy density and cycle life of the battery. For example, some new nickel - oxide - hydroxide materials with special crystal structures have been developed, which can enhance the electrochemical reaction efficiency during charging and discharging, thereby increasing the energy storage capacity of the battery.

For the negative electrode, improving the hydrogen - storage alloy is the focus of research. New types of hydrogen - storage alloys with higher hydrogen - storage capacity, better cycling stability, and lower activation energy are being developed. Nanotechnology has also been introduced into the preparation of electrode materials. By preparing nano - structured electrode materials, the specific surface area of the materials can be increased, improving the reaction kinetics of the battery, reducing the internal resistance, and thus improving the charging and discharging efficiency and power performance of the battery.

In terms of battery manufacturing technology, the trend is towards more precise and automated production processes. Advanced manufacturing techniques such as thin - film deposition and 3D printing are being explored for battery manufacturing. Thin - film deposition technology can be used to prepare uniform and thin electrode films, reducing the thickness of the battery while improving its performance. 3D printing technology allows for the customized production of battery structures, which can optimize the internal structure of the battery, improve the utilization rate of active materials, and enhance battery performance.

In addition, the development of battery management systems (BMS) for Ni - MH batteries is also an important trend. A more intelligent BMS can accurately monitor the state of charge (SOC), state of health (SOH), and temperature of the battery in real - time. By adjusting the charging and discharging current and voltage in a timely manner according to the battery status, the battery can be maintained in an optimal working state, effectively extending the service life of the battery and improving its safety.

In the future, with the continuous progress of material science, manufacturing technology, and intelligent control technology,  hydride energy storage batteries are expected to achieve breakthroughs in energy density, cycle life, charging speed, and cost, further enhancing their competitiveness in the energy storage battery market.