Microbatteries play a critical role in determining the lifetime of downsized sensors, wearable devices, medical applications, and animal acoustic telemetry transmitters among others. More often, structural batteries are required from the perspective of aesthetics and space utilization, which is however rarely explored. Herein, we discuss the fundamental issues associated with the rational design of practically usable high energy microbatteries. The tubular shape of the cell further allows the flexible integration of microelectronics. A functioning acoustic micro-transmitter continuously powered by this tubular battery has been successfully demonstrated. Multiple design features adopted to accommodate large mechanical stress during the rolling process are discussed providing new insights in designing the structural microbatteries for emerging technologies.

在确定小型传感器，可穿戴设备，医疗应用以及动物声遥测发射器的使用寿命方面，微电池起着至关重要的作用。从美学和空间利用的角度来看，更经常需要结构性电池，但是很少探索。在这里，我们讨论与合理设计实用的高能微型电池相关的基本问题。电池的管状形状进一步允许微电子的柔性集成。已经成功地证明了由该管状电池连续供电的功能正常的声音微发射器。