Interconnected conductive gel binder for high capacity silicon anode for Li-ion batteries
Küçük Resim Yok
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
CC0 1.0 Universal
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Özet
A new design for conjugation and crosslinking combined with a conjugated polymer and its application for high capacity Li-ion battery are demonstrated. Polyfluorene (PF), poly(phenylene) (PP), with lateral substituents, namely carboxylic acids, as a potential building block for conjugation was synthesized and characterized. The synthesis was achieved through Suzuki polycondensation reaction in the presence of Pd(PPh3)4 catalyst by using dibromo benzoic acid in conjunction with dioctylfluorene-diboronic acid bis(1,3-propanediol) ester. Thermal chemical cross-linking between carboxylic acid in the polymer backbone and free hydroxyl groups in poly(vinyl alcohol) (PVA) has been performed in the presence of Si. This approach enables a polymer binder with multi-functionality providing a high electronic conductivity and good cycling stability. Overall, we report on a Si-anode with capacity of 1932 mAh/g at C/3, demonstrating the improvement of the electrode using gel polymer binder.
Açıklama
Anahtar Kelimeler
Gel network binder, Silicon anode, Lithium ion battery
Kaynak
Materials Letters
WoS Q Değeri
Q2
Scopus Q Değeri
N/A
Cilt
273
Sayı
Künye
Taşkın, O. S., Yuca, N., Papavasiliou, J. ve Avgouropoulos, G. (2020). Interconnected conductive gel binder for high capacity silicon anode for Li-ion batteries. Materials Letters, Elsevier. 273.
