Intrinsically Stretchable and Printable Lithium-Ion Battery for Free-Form Configuration

Soo Yeong Hong, Sung Min Jee, Youngpyo Ko, Jinhan Cho, Keun Hyung Lee, Bongjun Yeom, Heesuk Kim, Jeong Gon Son

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)2271-2281
Number of pages11
JournalACS nano
Volume16
Issue number2
DOIs
Publication statusPublished - 2022 Feb 22

Keywords

  • all-component intrinsically stretchable battery
  • physically cross-linked organogels
  • printing on stretch fabric
  • stretchable current collector
  • stretchable lithium-ion battery

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Intrinsically Stretchable and Printable Lithium-Ion Battery for Free-Form Configuration'. Together they form a unique fingerprint.

Cite this