scholarly journals Three-Dimensional Copper Foil-Powder Sintering Current Collector for a Silicon-Based Anode Lithium-Ion Battery

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1338 ◽  
Author(s):  
Jin Long ◽  
Huilong Liu ◽  
Yingxi Xie ◽  
Weijin Tang ◽  
Ting Fu ◽  
...  

In this work, we propose a facile method for manufacturing a three-dimensional copper foil-powder sintering current collector (CFSCC) for a silicon-based anode lithium-ion battery. We found that the CFSCC is suitable as a silicon-based paste electrode, and the paste-like electrodes are commonly used in industrial production. Compared with flat current collectors, the CFSCC better constrained the silicon volume change during the charging-discharging process. The capacitance of electrodes with CFSCC remained as high as 92.2% of its second cycle after 40 cycles, whereas that of electrodes with a flat current collector only remained at 50%.

2010 ◽  
Vol 195 (7) ◽  
pp. 2077-2081 ◽  
Author(s):  
Masaru Yao ◽  
Kazuki Okuno ◽  
Tsutomu Iwaki ◽  
Tomoyuki Awazu ◽  
Tetsuo Sakai

2018 ◽  
Vol 42 (11) ◽  
pp. 9058-9064 ◽  
Author(s):  
Chun-Han Hsu ◽  
Heng-Han Lin ◽  
Yi-Hung Liu ◽  
Hong-Ping Lin

Carbon fibers as 3D current collectors for Si/r-GO lithium ion battery anodes with improved rate performance were achieved.


2016 ◽  
Vol 301 ◽  
pp. 355-361 ◽  
Author(s):  
Riki Kataoka ◽  
Yoshimitsu Oda ◽  
Ryouji Inoue ◽  
Mitsunori Kitta ◽  
Tetsu Kiyobayashi

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2467
Author(s):  
Yonhua Tzeng ◽  
Raycheng Chen ◽  
Jia-Lin He

Ubiquitous mobile electronic devices and rapidly increasing electric vehicles demand a better lithium ion battery (LIB) with a more durable and higher specific charge storage capacity than traditional graphite-based ones. Silicon is among the most promising active media since it exhibits ten times of a specific capacity. However, alloying with lithium by silicon and dissociation of the silicon-lithium alloys induce high volume changes and result in pulverization. The loss of electrical contacts by silicon with the current collector of the anode causes rapid capacity decay. We report improved anode cycling performance made of silicon flakes partially encapsulated by silicon dioxide and coated with conductive nanocarbon films and CNTs. The silicon dioxide surface layer on a silicon flake improves the physical integrity for a silicon-based anode. The exposed silicon surface provides a fast transport of lithium ions and electrons. CNTs and nanocarbon films provide electrical connections between silicon flakes and the current collector. We report a novel way of manufacturing silicon flakes partially covered by silicon dioxide through breaking oxidized silicon flakes into smaller pieces. Additionally, we demonstrate an improved cycling life and capacity retention compared to pristine silicon flakes and silicon flakes fully encapsulated by silicon dioxide. Nanocarbon coatings provide conduction channels and further improve the anode performance.


2007 ◽  
Vol 9 (5) ◽  
pp. 930-934 ◽  
Author(s):  
Tao Jiang ◽  
Shichao Zhang ◽  
Xinping Qiu ◽  
Wentao Zhu ◽  
Liquan Chen

2016 ◽  
Vol 163 (14) ◽  
pp. A2981-A2987 ◽  
Author(s):  
Kyung Yup Song ◽  
Gil Su Jang ◽  
Jin Tao ◽  
Jae Ho Lee ◽  
Seung Ki Joo

2013 ◽  
Vol 88 ◽  
pp. 766-771 ◽  
Author(s):  
Yuping Liu ◽  
Kai Huang ◽  
Yu Fan ◽  
Qing Zhang ◽  
Fu Sun ◽  
...  

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