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Unprecedented improvement of single Li-Ion conductive solid polymer electrolyte through salt additive

journal contribution
posted on 01.04.2020, 00:00 authored by M Martinez-Ibañez, E Sanchez-Diez, L Qiao, Y Zhang, X Judez, A Santiago, I Aldalur, J Carrasco, Haijin Zhu, Maria ForsythMaria Forsyth, M Armand, H Zhang
Solid-state lithium metal (Li°) batteries (SSLMBs) are believed to be the most promising technologies to tackle the safety concerns and the insufficient energy density encountered in conventional Li-ion batteries. Solid polymer electrolytes (SPEs) inherently own good processability and flexibility, enabling large-scale preparation of SSLMBs. To minimize the growth of Li° dendrites and cell polarization in SPE-based SSLMBs, an additive-containing single Li-ion conductive SPE is reported. The characterization results show that a small dose of electrolyte additive (2 wt%) substantially increases the ionic conductivity of single Li-ion conductive SPEs as well as the interfacial compatibility between electrode and SPE, allowing the cycling of SPE-based cells with good electrochemical performance. This work may provide a paradigm shift on the design of highly cationic conductive electrolytes, which are essential for developing safe and high-performance rechargeable batteries.

History

Journal

Advanced functional materials

Volume

30

Issue

16

Article number

2000455

Pagination

1 - 9

Publisher

Wiley

Location

Chichester, Eng.

ISSN

1616-301X

eISSN

1616-3028

Language

eng

Publication classification

C1 Refereed article in a scholarly journal