Chitosan-g-Poly(acrylic acid) Copolymer and Its Sodium Salt as Stabilized Aqueous Binders for Silicon Anodes in Lithium-Ion Batteries

2019 ◽  
Vol 7 (19) ◽  
pp. 16274-16283 ◽  
Author(s):  
Yang Gao ◽  
Xiaotao Qiu ◽  
Xiuli Wang ◽  
Aiqun Gu ◽  
Li Zhang ◽  
...  
RSC Advances ◽  
2018 ◽  
Vol 8 (51) ◽  
pp. 29230-29236 ◽  
Author(s):  
Xiangyu Zeng ◽  
Yongji Shi ◽  
Yu Zhang ◽  
Ruixian Tang ◽  
Liangming Wei

The PVTES-NaPAA binder possesses a three-dimensional crosslinked network and exhibits an excellent cycling performance.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jaebin Nam ◽  
Eunsoo Kim ◽  
Rajeev K.K. ◽  
Yeonho Kim ◽  
Tae-Hyun Kim

Abstract A ureido-pyrimidinone (UPy)-functionalized poly(acrylic acid) grafted with poly(ethylene glycol)(PEG), designated PAU-g-PEG, was developed as a high performance polymer binder for Si anodes in lithium-ion batteries. By introducing both a ureido-pyrimidinone (UPy) unit, which is capable of self-healing through dynamic hydrogen bonding within molecules as well as with Si, and an ion-conducting PEG onto the side chain of the poly(acrylic acid), this water-based self-healable and conductive polymer binder can effectively accommodate the volume changes of Si, while maintaining electronic integrity, in an electrode during repeated charge/discharge cycles. The Si@PAU-g-PEG electrode retained a high capacity of 1,450.2 mAh g−1 and a Coulombic efficiency of 99.4% even after 350 cycles under a C-rate of 0.5 C. Under a high C-rate of 3 C, an outstanding capacity of 2,500 mAh g−1 was also achieved, thus demonstrating its potential for improving the electrochemical performance of Si anodes.


2019 ◽  
Vol 43 (32) ◽  
pp. 12555-12562 ◽  
Author(s):  
Xiaofei Yang ◽  
Huimin Zhang ◽  
Hai Ming ◽  
Jingyi Qiu ◽  
Gaoping Cao ◽  
...  

The aqueous binder effects of poly(acrylic acid) and carboxy methylated cellulose on metal (oxide) anode performance in lithium-ion batteries were studied.


Polimery ◽  
2011 ◽  
Vol 56 (03) ◽  
pp. 151 ◽  
Author(s):  
Beata Grabowska ◽  
Mariusz Holtzer ◽  
Sonja Eichholz ◽  
Krzysztof Hodor ◽  
Artur Bobrowski

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