needle-shaped cathode

例句：

1. 1. The new battery uses a needle-shaped cathode to store energy more efficiently.
   这种新型电池使用针状阴极来更有效地储存能量。
2. 2.In the design of a new power storage system, the needle-shaped cathode plays a crucial role.
   在新型储能系统的设计中，针状阴极起着至关重要的作用。
3. 3. The research on needle-shaped cathodes is still in its early stages, but it holds great promise for future development.
   针状阴极的研究仍处于初级阶段，但前景光明。