A Highly Cross‐Linked Polymeric Binder for High‐Performance Silicon Negative Electrodes in Lithium Ion Batteries
2012; Wiley; Volume: 51; Issue: 35 Linguagem: Inglês
10.1002/anie.201201568
ISSN1521-3773
AutoresBonjae Koo, Hyunjung Kim, Younghyun Cho, Kyu Tae Lee, Nam‐Soon Choi, Jaephil Cho,
Tópico(s)Advanced Battery Materials and Technologies
ResumoA 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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