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Garcia, GAuthorYusuf, AAuthorGarcia, McAuthor

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April 4, 2022
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Thermoconformable, Flexible Lithium-Ion Batteries

Publicated to: Advanced Materials Technologies. 7 (9): - 2022-01-01 7(9), DOI: 10.1002/admt.202101635

Authors:

Boaretto N; Dávila B; Sevilla S; García G; Mikhalchan A; Rana M; Yusuf A; Ubierna Martinez L; Castillo García M; Palma J; Wang DY; Marcilla R; José Vilatela J
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Affiliations

Basque Res & Technol Alliance BRTA, Ctr Cooperat Res Alternat Energies CIC EnergiGUNE, Vitoria 01510, Spain - Author
Grp Antolin Ingn, Ctra Madrid Irun,Km 244-8, Burgos 09007, Spain - Author
IMDEA Energy, Electrochem Proc Unit, Avda Ramon de la Sagra 3, Madrid 28935, Spain - Author
IMDEA Mat, Eric Kandel 2, Madrid 28906, Spain - Author
Univ Politecn Madrid, ETS Ingenieros Caminos, Madrid 28040, Spain - Author
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Abstract

This work introduces a scalable method for fabrication of flexible, thermoconformable lithium-ion batteries, suitable for the interior of vehicles. Electrodes with a composite structure are fabricated by combining conventional granular slurries with a porous carbon nanotube fabric current collector and a solid gel polymer electrolyte. The composite structure reduces polarization at high current densities, for example, with 50% and 17% higher charge capacity at 1C in LTO/Li half cells than control samples and commercial electrodes, respectively. Introducing a gel-polymer electrolyte increases cell durability, safety, and thermal stability. Cyclability test at of 1C shows a capacity retention as high as 91% after almost 400 cycles (average capacity fade of 0.025% cycle(-1)). Full cells operate from 0 to 60 degrees C without any additives. Cells stored for 30 min up to 90 degrees C suffer minor capacity degradation. The possibility to withstand high temperatures and significant flexural deformation enable subjecting these pouch cells to thermoconformable processes. A roof panel with four 25 cm(2) pouch cells is demonstrated. Flammability test shows that the carbon nanotube fibers (CNTF)-LFP/CNTF-LTO cells have a 50% lower peak of heat release rate and a much smaller total heat released than control cells with metallic current collector and liquid electrolyte.
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Keywords

Carbon nanotubeLithium-ion batteriesPolymer electrolyteThermoconformable

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Advanced Materials Technologies due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position 82/344, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-12-21:

  • WoS: 3
  • Scopus: 8
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-12-21:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 10.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 10 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 2.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).
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Awards linked to the item

The authors are grateful for financial support from the European Union Horizon 2020 Framework Program (678565, ERC-STEM), "Comunidad de Madrid" FotoArt-CM project (S2018/NMT-4367), the Air Force Office of Scientific Research of the United States (NANOYARN FA9550-18-1-7016), and The Carbon Hub. A.M. acknowledges funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skodowska-Curie grant agreement 797176 (ENERYARN). The work performed at Grupo Antolin was partly funded by the programme "Programa de Planes Estrategicos de empresas en materia de I+D, con apoyo de Fondos FEDER en el ambito de Castilla y Leon (Expediente 10/18/BU/0005)." The authors are grateful to Mr. J. L. Jimenez for assistance with mechanical tests.
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