A Copper Silicide Nanofoam Current Collector for Directly Grown Si Nanowire Networks and their Application as Lithium‐Ion Anodes

2020 ◽  
Vol 30 (38) ◽  
pp. 2003278 ◽  
Author(s):  
Ibrahim Saana Aminu ◽  
Hugh Geaney ◽  
Sumair Imtiaz ◽  
Temilade E. Adegoke ◽  
Nilotpal Kapuria ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Current Collector ◽  
Copper Silicide ◽  
Si Nanowire ◽  
Nanowire Networks

Si Nanowire Anode Prepared by Chemical Etching for High Energy Density Lithium-ion Battery

2013 ◽  
Vol 28 (11) ◽  
pp. 1207-1212 ◽  
Author(s):  
Jian-Wen LI ◽  
Ai-Jun ZHOU ◽  
Xing-Quan LIU ◽  
Jing-Ze LI
Keyword(s):  
Energy Density ◽  
Lithium Ion Battery ◽  
Chemical Etching ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Si Nanowire

Dodecanethiol coated multi-walled carbon nanotube films as flexible current collector for lithium-ion batteries

2021 ◽  
Vol 291 ◽  
pp. 129508
Author(s):  
Xiangnan Yu ◽  
Yang Jiang ◽  
Xiao Yang ◽  
Zhaoheng Cai ◽  
Yang Hua ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Current Collector ◽  
Multi Walled Carbon Nanotube ◽  
Nanotube Films

Effects of SiO2 particles in copper current collector on diffusion induced stresses in layered Li-ion battery electrodes

2021 ◽  
pp. 095440622110036
Author(s):  
Roozbeh Pouyanmehr ◽  
Morteza Pakseresht ◽  
Reza Ansari ◽  
Mohammad Kazem Hassanzadeh-Aghdam
Keyword(s):  
Volume Fraction ◽  
Lithium Ion ◽  
Current Collector ◽  
Limiting Factors ◽  
Li Ion Battery ◽  
Current Collectors ◽  
Effect Of Particle Size ◽  
Li Ion ◽  
Induced Stresses ◽  
Copper Composite

One of the limiting factors in the life of lithium-ion batteries is the diffusion-induced stresses on their electrodes that cause cracking and consequently, failure. Therefore, improving the structure of these electrodes to be able to withstand these stresses is one of the ways that can extend the life of the batteries as well as improve their safety. In this study, the effects of adding graphene nanoplatelets and microparticles into the active plate and current collectors, respectively, on the diffusion induced stresses in both layered and bilayered electrodes are numerically investigated. The micromechanical models are employed to predict the mechanical properties of both graphene nanoplatelet-reinforced Sn-based nanocomposite active plate and silica microparticle-reinforced copper composite current collector. The effect of particle size and volume fraction in the current collector on diffusion induced stresses has been studied. The results show that in electrodes with a higher volume fraction of particles and smaller particle radii, decreased diffusion induced stresses in both the active plate and the current collector are observed. These additions will also result in a significant decrease in the bending of the electrode.

Failure mechanism in fiber-shaped electrodes for lithium-ion batteries

2015 ◽  
Vol 3 (20) ◽  
pp. 10942-10948 ◽  
Author(s):  
Wei Weng ◽  
Qingqing Wu ◽  
Qian Sun ◽  
Xin Fang ◽  
Guozhen Guan ◽  
...  
Keyword(s):  
Contact Resistance ◽  
Failure Mechanism ◽  
Electrical Contact ◽  
Active Material ◽  
Lithium Ion ◽  
Current Collector ◽  
Conductive Network ◽  
Electrical Contact Resistance ◽  
Loss Of Contact ◽  
First Time

Failure mechanism is investigated for the first time in a Si-based fiber-shaped electrode. The interphase electrical contact resistance indicates the dominant failure mechanism, which is the loss of contact between the current collector/conductive network and the active material. The decreasing contact resistance denotes the loose interphase contact and a decreasing capacity.

Stress-relieved Si anode on a porous Cu current collector for high-performance lithium-ion batteries

2019 ◽  
Vol 223 ◽  
pp. 152-156 ◽  
Author(s):  
Sang-Hyun Moon ◽  
Si-Jin Kim ◽  
Min-Cheol Kim ◽  
Jin-Young So ◽  
Ji-Eun Lee ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Current Collector ◽  
Si Anode ◽  
Cu Current Collector
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