TY - JOUR
T1 - Intrinsically Stretchable and Printable Lithium-Ion Battery for Free-Form Configuration
AU - Hong, Soo Yeong
AU - Jee, Sung Min
AU - Ko, Youngpyo
AU - Cho, Jinhan
AU - Lee, Keun Hyung
AU - Yeom, Bongjun
AU - Kim, Heesuk
AU - Son, Jeong Gon
N1 - Funding Information:
We gratefully acknowledge financial support from the Korea Institute of Science and Technology (KIST) and KU-KIST Institutional Program (project No. 2E31811 and 2V06630) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (2019R1A2C2005657, 2021R1C1C2007738, and 2022R1A2B5B02001597). In addition, the Creative Materials Discovery Program also supported this work through the NRF grant funded by the Ministry of Science and ICT (2020M3D1A1110499, 2020M3D1A2101799, and 2020M3D1A2101800).
Publisher Copyright:
© 2022 American Chemical Society
PY - 2022/2/22
Y1 - 2022/2/22
N2 - For next-generation wearable and implantable devices, energy storage devices should be soft and mechanically deformable and easily printable on any substrate or active devices. Herein, we introduce a fully stretchable lithium-ion battery system for free-form configurations in which all components, including electrodes, current collectors, separators, and encapsulants, are intrinsically stretchable and printable. The stretchable electrode acquires intrinsic stretchability and improved interfacial adhesion with the active materials via a functionalized physically cross-linked organogel as a stretchable binder and separator. Intrinsically stretchable current collectors are fabricated in the form of nanocomposites consisting of a matrix with excellent barrier properties without swelling in organic electrolytes and nanostructure-controlled multimodal conductive fillers. Due to structural and materials freedoms, we successfully fabricate several types of stretchable lithium-ion battery that reliably operates under various stretch deformations with capacity and rate capability comparable with a nonstretchable battery over 2.5 mWh cm-2 at 0.5 C, even under high mass loading conditions over 10 mg cm-2, including stacked configuration, direct integration on both sides of a stretch fabric, and application of various electrode materials and electrolytes. Especially, our stretchable battery printed on a stretch fabric also exhibits high performance and stretch/long-term stabilities in the air even with wearing and pulling.
AB - For next-generation wearable and implantable devices, energy storage devices should be soft and mechanically deformable and easily printable on any substrate or active devices. Herein, we introduce a fully stretchable lithium-ion battery system for free-form configurations in which all components, including electrodes, current collectors, separators, and encapsulants, are intrinsically stretchable and printable. The stretchable electrode acquires intrinsic stretchability and improved interfacial adhesion with the active materials via a functionalized physically cross-linked organogel as a stretchable binder and separator. Intrinsically stretchable current collectors are fabricated in the form of nanocomposites consisting of a matrix with excellent barrier properties without swelling in organic electrolytes and nanostructure-controlled multimodal conductive fillers. Due to structural and materials freedoms, we successfully fabricate several types of stretchable lithium-ion battery that reliably operates under various stretch deformations with capacity and rate capability comparable with a nonstretchable battery over 2.5 mWh cm-2 at 0.5 C, even under high mass loading conditions over 10 mg cm-2, including stacked configuration, direct integration on both sides of a stretch fabric, and application of various electrode materials and electrolytes. Especially, our stretchable battery printed on a stretch fabric also exhibits high performance and stretch/long-term stabilities in the air even with wearing and pulling.
KW - all-component intrinsically stretchable battery
KW - physically cross-linked organogels
KW - printing on stretch fabric
KW - stretchable current collector
KW - stretchable lithium-ion battery
UR - http://www.scopus.com/inward/record.url?scp=85123924992&partnerID=8YFLogxK
U2 - 10.1021/acsnano.1c08405
DO - 10.1021/acsnano.1c08405
M3 - Article
C2 - 35060720
AN - SCOPUS:85123924992
SN - 1936-0851
VL - 16
SP - 2271
EP - 2281
JO - ACS Nano
JF - ACS Nano
IS - 2
ER -