Design of High Capacity Dissoluble Electrodes for All Transient Batteries
Abstract
Transient electronics is an emerging engineering realm that requires materials, devices, and systematic designs with excellent and stable performance in regular operations, but to physically and chemically disappear at a prescribed time with controlled rates once being triggered by external stimulus, leaving no or minimum remnants. In this article, a high energy density rechargeable battery with a fully transient cathode based on tin (Sn)‐doped vanadium oxide (V2O5) is designed. Sn‐doped V2O5 nanofibers with a high mass loading of 12 mg cm−2 are prepared and no conducting additive or binder is added to fabricate full cells. The transient battery exhibits an areal capacity of 2 mAh cm−2 with a working voltage above 2.0 V and provides 0.27 mAh cm−2 capacity at a current as high as 17.76 mA cm−2. Once triggered by potassium hydroxide (KOH) aqueous solution, the full cell can be completely dissolved into the solution within a few minutes to achieve highly transient capability. This work provides a new approach to achieve an all‐transient lithium battery with high areal capacity for transient electronics applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 06, 2017
- Source ID
- 10.1002/adfm.201605724
Entities
People
- Boyang Liu
- Jiaqi Dai
- Kun (kelvin) Fu
- Liangbing Hu
- Yibo Wang
- Yonggang Yao
- Zhen Liu
- Zhengyang Wang
Organizations
- Defense Advanced Research Projects Agency