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Enhancing cycling durability of Li-ion batteries with hierarchical structured silicon–graphene hybrid anodes
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Loveridge, Melanie, Lain, Michael J., Huang, Qianye, Wan, Chaoying, Roberts, Alexander J. , Pappas, George S. and Bhagat, Rohit (2016) Enhancing cycling durability of Li-ion batteries with hierarchical structured silicon–graphene hybrid anodes. Physical Chemistry Chemical Physics, 18 . pp. 30677-30685. doi:10.1039/C6CP06788C ISSN 1463-9076.
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Official URL: http://dx.doi.org/10.1039/C6CP06788C
Abstract
Hybrid anode materials consisting of micro-sized silicon (Si) particles interconnected with few-layer graphene (FLG) nanoplatelets and sodium-neutralized poly(acrylic acid) as a binder were evaluated for Li-ion batteries. The hybrid film has demonstrated a reversible discharge capacity of ∼1800 mA h g−1 with a capacity retention of 97% after 200 cycles. The superior electrochemical properties of the hybrid anodes are attributed to a durable, hierarchical conductive network formed between Si particles and the multi-scale carbon additives, with enhanced cohesion by the functional polymer binder. Furthermore, improved solid electrolyte interphase (SEI) stability is achieved from the electrolyte additives, due to the formation of a kinetically stable film on the surface of the Si.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
| Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Silicon -- Electric properties, Graphene, Electric vehicles -- Batteries | ||||||||
| Journal or Publication Title: | Physical Chemistry Chemical Physics | ||||||||
| Publisher: | Royal Society of Chemistry | ||||||||
| ISSN: | 1463-9076 | ||||||||
| Official Date: | 21 October 2016 | ||||||||
| Dates: |
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| Volume: | 18 | ||||||||
| Page Range: | pp. 30677-30685 | ||||||||
| DOI: | 10.1039/C6CP06788C | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 17 February 2017 | ||||||||
| Date of first compliant Open Access: | 21 October 2017 | ||||||||
| Funder: | High Value Manufacturing Catapult, Warwick Manufacturing Group | ||||||||
| Grant number: | RESWM8053 |
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