†Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States.
‡Advanced Sensors, SPX-Technology Solutions, BAE Systems Inc., Columbia, Maryland 21046, United States.
Nano Lett. 2015 Jul 8;15(7):4664-71. doi: 10.1021/acs.nanolett.5b01451. Epub 2015 Jun 26.
Transient battery is a new type of technology that allows the battery to disappear by an external trigger at any time. In this work, we successfully demonstrated the first transient rechargeable batteries based on dissoluble electrodes including V2O5 as the cathode and lithium metal as the anode as well as a biodegradable separator and battery encasement (PVP and sodium alginate, respectively). All the components are robust in a traditional lithium-ion battery (LIB) organic electrolyte and disappear in water completely within minutes due to triggered cascade reactions. With a simple cut-and-stack method, we designed a fully transient device with an area of 0.5 cm by 1 cm and total energy of 0.1 J. A shadow-mask technique was used to demonstrate the miniature device, which is compatible with transient electronics manufacturing. The materials, fabrication methods, and integration strategy discussed will be of interest for future developments in transient, self-powered electronics. The demonstration of a miniature Li battery shows the feasibility toward system integration for all transient electronics.
瞬态电池是一种新型技术，可通过外部触发随时使电池消失。在这项工作中，我们成功地展示了基于可溶解电极的首个瞬态可充电电池，包括 V2O5 作为阴极和锂金属作为阳极，以及可生物降解的隔板和电池外壳（分别为 PVP 和海藻酸钠）。所有组件在传统的锂离子电池（LIB）有机电解质中都很坚固，由于触发级联反应，几分钟内即可在水中完全消失。通过简单的切割和堆叠方法，我们设计了一个完全瞬态的器件，面积为 0.5 厘米乘 1 厘米，总能量为 0.1 J。使用阴影掩模技术来演示与瞬态电子制造兼容的微型器件。所讨论的材料、制造方法和集成策略将为未来瞬态、自供电电子产品的发展带来兴趣。微型 Li 电池的演示展示了面向所有瞬态电子产品的系统集成的可行性。
