Stretchable self-charging energy integrated device of high storage efficiency
- Authors
- Kwon, O. Hyeon; Ryu, Jun; Lee, Ji Hye; Kim, Hee Woong; Cho, Jung Sang; Jeong, Sang Mun; Kang, Dong-Won; Kim, Jae-Kwang
- Issue Date
- Mar-2022
- Publisher
- Elsevier B.V.
- Keywords
- Integrated energy device; Metal-island common substrate; Self-charging; Self-energy storage efficiency; Solar-rechargeable battery module
- Citation
- Journal of Power Sources, v.525
- Journal Title
- Journal of Power Sources
- Volume
- 525
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/55334
- DOI
- 10.1016/j.jpowsour.2022.231079
- ISSN
- 0378-7753
1873-2755
- Abstract
- Integrated energy devices consisting of solar cells and rechargeable batteries are in great demand in wearable electronics and low-energy-density applications in fields such as healthcare. However, developing energy-efficient stretchable energy systems is very difficult due to numerous technical limitations. Herein, a stretchable solar module/rechargeable lithium-ion battery-integrated energy device using a zig-zag truncated electrode for energy storage, nano-sized electrode materials and a polymer–metal-island non-woven common substrate for the integration device is presented. This new stretchable device is portable, has a high operation potential (up to 1.8 V), a long life, high self-charging efficiency, and a high rate-capability. Its self-power conversion/storage efficiency is unprecedented at 13.3%. Additionally, an 89.34% retention capacity can be obtained after 100 cycles, and a surprisingly low-capacity decay of 5.7% in the 30% stretched state is observed. The device's stable performance under various current density and stretching conditions paves the way for the development of highly stretchable integrated energy systems. © 2022 Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Energy System Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/55334)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.