Li alloy-based non-volatile actuators
- Authors
- Noh, Myoung-Sub; Lee, Hyunseok; Song, Young Geun; Jung, Inki; Ning, Ruiguang; Paek, Sung Wook; Song, Hyun-Cheol; Baek, Seung-Hyub; Kang, Chong-Yun; Kim, Sang tae
- Issue Date
- Mar-2019
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Artificial Muscles; Electrochemistry; Li Alloys; Non-Volatile Actuation
- Citation
- NANO ENERGY, v.57, pp.653 - 659
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO ENERGY
- Volume
- 57
- Start Page
- 653
- End Page
- 659
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/14313
- DOI
- 10.1016/j.nanoen.2018.12.095
- ISSN
- 2211-2855
- Abstract
- Conventional artificial muscles induce bending by aligning large-sized ions within the electrolyte upon bias application. Such design, alike many other actuator types, suffer from volatile actuation where the actuated position gets lost upon switch-off. Here, we develop a non-volatile artificial muscle with ion insertion electrode materials. Upon bias application, the inserted ions pose stress on the electrodes that sustain even after power shut-off. The demonstrated actuator consists of lithium germanide (LixGe) thin films deposited on both sides of a flexible polyimide (PI) substrate. The device exhibits 35.2 mm displacement when operated at 2 V and generates the blocking force of 0.67 mN. The observed stress and volume expansion reach 248 MPa and 8.2% for the 284 nm Li3Ge thin films, respectively. The actuated position is maintained against gravity with 12.1% decay in the actuated distance after 10 min. The novel actuator type proves the potential use of lithium insertion materials as actuation materials and shows that non-volatile actuation can be realized with ion-insertion electrodes.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 원자력공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/14313)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.