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. 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.
Original language | English |
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Pages (from-to) | 30677-30685 |
Number of pages | 9 |
Journal | Physical Chemistry Chemical Physics |
Volume | 18 |
Early online date | 21 Oct 2016 |
DOIs | |
Publication status | Published - 28 Nov 2016 |
Externally published | Yes |
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Alexander Roberts
- Centre for E-Mobility and Clean Growth - Professor in Energy Storage
Person: Teaching and Research