Superionic lithium transport via multiple coordination environments defined by two-anion packing

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Han, Guopeng ORCID: 0000-0003-3861-5396, Vasylenko, Andrij ORCID: 0000-0002-6933-0628, Daniels, Luke M ORCID: 0000-0002-7077-6125, Collins, Chris M ORCID: 0000-0002-0101-4426, Corti, Lucia, Chen, Ruiyong ORCID: 0000-0002-5340-248X, Niu, Hongjun, Manning, Troy D ORCID: 0000-0002-7624-4306, Antypov, Dmytro ORCID: 0000-0003-1893-7785, Dyer, Matthew S ORCID: 0000-0002-4923-3003 et al (show 12 more authors) , Lim, Jungwoo, Zanella, Marco ORCID: 0000-0002-6164-6169, Sonni, Manel ORCID: 0000-0001-6872-445X, Bahri, Mounib ORCID: 0000-0002-8336-9158, Jo, Hongil ORCID: 0000-0002-0627-4921, Dang, Yun ORCID: 0000-0002-0140-0140, Robertson, Craig M ORCID: 0000-0002-4789-7607, Blanc, Frédéric ORCID: 0000-0001-9171-1454, Hardwick, Laurence J ORCID: 0000-0001-8796-685X, Browning, Nigel D ORCID: 0000-0003-0491-251X, Claridge, John B ORCID: 0000-0003-4849-6714 and Rosseinsky, Matthew J ORCID: 0000-0002-1910-2483 (2024) Superionic lithium transport via multiple coordination environments defined by two-anion packing. Science, 383 (6684). pp. 739-745.

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Abstract

<jats:p> Fast cation transport in solids underpins energy storage. Materials design has focused on structures that can define transport pathways with minimal cation coordination change, restricting attention to a small part of chemical space. Motivated by the greater structural diversity of binary intermetallics than that of the metallic elements, we used two anions to build a pathway for three-dimensional superionic lithium ion conductivity that exploits multiple cation coordination environments. Li <jats:sub>7</jats:sub> Si <jats:sub>2</jats:sub> S <jats:sub>7</jats:sub> I is a pure lithium ion conductor created by an ordering of sulphide and iodide that combines elements of hexagonal and cubic close-packing analogously to the structure of NiZr. The resulting diverse network of lithium positions with distinct geometries and anion coordination chemistries affords low barriers to transport, opening a large structural space for high cation conductivity. </jats:p>

Item Type:	Article
Uncontrolled Keywords:	7 Affordable and Clean Energy
Divisions:	Faculty of Science and Engineering > School of Engineering Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	16 Feb 2024 11:30
Last Modified:	14 Mar 2024 19:05
DOI:	10.1126/science.adh5115
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3178738