An electrochemically active textile current collector with a high areal capacity and a strong energy recovery effect using an interfacial interaction assembly

Euiju Yong, Donghyeon Nam, Yangsoo Kim, Kwangsoo Kim, Byung Hyun Kim, Yongmin Ko, Jinhan Cho

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Conventional current collectors in lithium-ion batteries (LIBs) are generally nonactive components. However, enhancing their electroactive properties and increasing the electroactive surface area can significantly improve the areal energy performance of next-generation battery electrodes. Herein, we introduce an electrochemically active textile current collector that delivers high energy storage performance, achieved through interfacial interaction assembly-induced electroplating. We first prepared metal nanoparticle/multiwalled carbon nanotube multilayer-incorporated cotton textiles using complementary interaction-mediated layer-by-layer assembly, and subsequently electroplated them with Cu. The resulting textile exhibited a high areal capacity of ∼3.27 mA h cm−2 at 0.875 mA cm−2, excellent cycling stability, and a strong energy recovery effect, thanks to the synergistic contributions of the large active surface area of the fibril structure, the robust interfacial assembly, and the formation of a metal oxide NP/pseudocapacitive polymeric gel-like phase at the electrode/electrolyte interface. Moreover, when incorporating Li4Ti5O12 with a theoretical capacity of 175 mA h g − 1 into our textile current collector, the specific capacity and areal capacity of the LIB anode can be increased up to ∼573 mA h g 1 and 8.60 mA h cm−2 (at 15 mg cm−2 LTO), respectively, outperforming those of previously reported LTO-based anodes.

Original languageEnglish
Article number102813
JournalEnergy Storage Materials
Volume60
DOIs
Publication statusPublished - 2023 Jun

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT; Ministry of Science and ICT) ( NRF-2021R1A2C3004151, 23-ET-08 , and KBSI-C210200 ).

Publisher Copyright:
© 2023

Keywords

  • Cu textile
  • Lithium-ion battery
  • Negative fading
  • Polymeric gel-like phase

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science
  • Energy Engineering and Power Technology

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