A theoretical approach to evaluate the rate capability of Li-ion battery cathode materials

2014 ◽  
Vol 2 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Mohammad Mahdi Kalantarian ◽  
Sirous Asgari ◽  
Piercarlo Mustarelli
Keyword(s):  
Theoretical Approach ◽  
Cathode Materials ◽  
Rate Capability ◽  
Li Ion Battery ◽  
Li Ion

scholarly journals Effects of Graphene Nanosheets with Different Lateral Sizes as Conductive Additives on the Electrochemical Performance of LiNi0.5Co0.2Mn0.3O2 Cathode Materials for Li Ion Batteries

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1162
Author(s):  
Ting-Hao Hsu ◽  
Wei-Ren Liu
Keyword(s):  
Cathode Materials ◽  
Size Effects ◽  
Graphene Nanosheets ◽  
Rate Capability ◽  
Ion Transfer ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Diffusion Distance ◽  
Conductive Additives ◽  
Li Ion

In this study, we focus on lateral size effects of graphene nanosheets as conductive additives for LiNi0.5Co0.2Mn0.3O2 (NCM) cathode materials for Li-ion batteries. We used two different lateral sizes of graphene, 13 (GN-13) and 28 µm (GN-28). It can be found that the larger sheet sizes of graphene nanosheets give a poorer rate capability. The electrochemical measurements indicate that GN-13 delivers an average capacity of 189.8 mAh/g at 0.1 C and 114.2 mAh/g at 2 C and GN-28 exhibits an average capacity of 179.4 mAh/g at 0.1 C and only 6 mAh/g at 2 C. Moreover, according to the results of alternating current (AC) impedance, it can be found that the GN-28 sample has much higher resistance than that of GN-13. The reason might be attributed to that GN-28 has a longer diffusion distance of ion transfer and the mismatch of particle size between NCM and GN-28. The corresponding characterization might provide important reference for Li-ion battery applications.

A NOVEL CLOSED LOOP PROCESS FOR RECYCLING SPENT Li-ION BATTERY CATHODE MATERIALS

2021 ◽  
pp. 1-16
Author(s):  
Joey Chung-Yen Jung ◽  
Norman Chow ◽  
Anca Nacu ◽  
Mariam Melashvili ◽  
Alex Cao ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Closed Loop ◽  
Li Ion Battery ◽  
Li Ion

Carbon-coated LiMn1-Fe PO4 (0≤x≤0.5) nanocomposites as high-performance cathode materials for Li-ion battery

2019 ◽  
Vol 175 ◽  
pp. 107067 ◽  
Author(s):  
Ting-Feng Yi ◽  
Pan-Pan Peng ◽  
Zikui Fang ◽  
Yan-Rong Zhu ◽  
Ying Xie ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Li Ion Battery ◽  
Carbon Coated ◽  
Li Ion

An interfacial framework for breaking through the Li-ion transport barrier of Li-rich layered cathode materials

2017 ◽  
Vol 5 (46) ◽  
pp. 24292-24298 ◽  
Author(s):  
Yu Zheng ◽  
Lai Chen ◽  
Yuefeng Su ◽  
Jing Tan ◽  
Liying Bao ◽  
...  
Keyword(s):  
Ion Transport ◽  
Cathode Materials ◽  
Rate Capability ◽  
High Rate ◽  
Layered Crystal ◽  
High Rate Capability ◽  
Transport Barrier ◽  
Layered Cathode Materials ◽  
Li Ion

A spinel structured interfacial framework was derived within a host layered crystal, resulting in excellent high-rate capability of Li-rich materials.

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