An Approach to Make Macroporous Metal Sheets as Current Collectors for Lithium-Ion Batteries

2010 ◽  
Vol 157 (7) ◽  
pp. A765 ◽  
Author(s):  
Wu Xu ◽  
Nathan L. Canfield ◽  
Deyu Wang ◽  
Jie Xiao ◽  
Zimin Nie ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Current Collectors ◽  
Metal Sheets

scholarly journals Review of the Design of Current Collectors for Improving the Battery Performance in Lithium-Ion and Post-Lithium-Ion Batteries

Electrochem ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 124-159 ◽  
Author(s):  
Mitsuru Yamada ◽  
Tatsuya Watanabe ◽  
Takao Gunji ◽  
Jianfei Wu ◽  
Futoshi Matsumoto
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Rate Performance ◽  
Active Materials ◽  
Current Collectors ◽  
Advantages And Disadvantages ◽  
Conductive Additives ◽  
A Cell ◽  
Coating Layers

Current collectors (CCs) are an important and indispensable constituent of lithium-ion batteries (LIBs) and other batteries. CCs serve a vital bridge function in supporting active materials such as cathode and anode materials, binders, and conductive additives, as well as electrochemically connecting the overall structure of anodes and cathodes with an external circuit. Recently, various factors of CCs such as the thickness, hardness, compositions, coating layers, and structures have been modified to improve aspects of battery performance such as the charge/discharge cyclability, energy density, and the rate performance of a cell. In this paper, the details of interesting and useful attempts of preparing CCs for high battery performance in lithium-ion and post-lithium-ion batteries are reviewed. The advantages and disadvantages of these attempts are discussed.

scholarly journals Electrochemical Performance of a Lithium Ion Battery with Different Nanoporous Current Collectors

Batteries ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 21 ◽  
Author(s):  
Huajun Feng ◽  
Yuan Chen ◽  
Yihua Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Positive Impact ◽  
Lithium Ion ◽  
Current Collector ◽  
Aluminum Foil ◽  
Nanoporous Structure ◽  
Current Collectors ◽  
Copper Foam ◽  
Ultrasonic Time ◽  
Battery Capacity

In this work, we use ultrasonication and chemical etching agents to assist preparation of metal current collectors with nano-scale pores on the surface. Four different current collectors (copper foil, copper foam, aluminum foil, and aluminum foam) are prepared. The preparation parameters, ultrasonic time and etching agent concentration, are investigated and optimized accordingly. The morphologies of the as-prepared current collectors are observed under a scanning electronic microscope. Soft-packed lithium ion batteries with various current collectors are fabricated and tested. The prepared lithium ion batteries show good long-term cycle stability. The nanoporous structure of the current collector has little impact on the improvement of battery capacity under slow charging/discharging rates but has a positive impact on capacity retention under fast charging/discharging rates.

Potential threshold of anode materials for foldable lithium-ion batteries featuring carbon nanotube current collectors

2016 ◽  
Vol 310 ◽  
pp. 70-78 ◽  
Author(s):  
Qing Hui Wang ◽  
Sheng Wen Zhong ◽  
Jing Wei Hu ◽  
Ting Liu ◽  
Xian Yan Zhu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Current Collectors ◽  
Potential Threshold
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