A Highly Cross-Linked Polymeric Binder for High-Performance Silicon Negative Electrodes in Lithium Ion Batteries
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- A Highly Cross-Linked Polymeric Binder for High-Performance Silicon Negative Electrodes in Lithium Ion Batteries
- Koo, Bonjae; Kim, Hyunjung; Cho, Younghyun; Lee, Kyu Tae; Choi, Nam-Soon; Cho, Jaephil
- High capacity; High current densities; Interconnected network; Lithium-ion battery; Nano-sized silicon; Negative electrode; Poly(acrylic acid ); Polymeric binder; Reversible capacity; Sodium carboxymethylcellulose
- Issue Date
- WILEY-V C H VERLAG GMBH
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.51, no.35, pp.8762 - 8767
- A support bandage for electrodes: A cross-linked polymeric binder (see picture, red) inhibits mechanical fracture of silicon negative electrodes during cycling. Nanosized silicon powder with a 3D interconnected network of poly(acrylic acid) and sodium carboxymethylcellulose as binder exhibits high reversible capacity of over 2000 mAh g -1 after 100 cycles at 30 °C while maintaining a high capacity and high current density.
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