scholarly journals High-Ni cathode material improved with Zr for stable cycling of Li-ion rechargeable batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (45) ◽  
pp. 26756-26764
Author(s):  
Kwangjin Park ◽  
Dong Jin Ham ◽  
Seong Yong Park ◽  
Jihyun Jang ◽  
Dong-Hee Yeon ◽  
...  

The Zr solvent solution method, which allows primary and secondary particles of LiNi0.90Co0.05Mn0.05O2 (NCM) to be uniformly doped with Zr and simultaneously to be coated with an Li2ZrO3 layer, is introduced in this paper.

Batteries ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 4
Author(s):  
Shofirul Sholikhatun Nisa ◽  
Mintarsih Rahmawati ◽  
Cornelius Satria Yudha ◽  
Hanida Nilasary ◽  
Hartoto Nursukatmo ◽  
...  

Li-ion batteries as a support for future transportation have the advantages of high storage capacity, a long life cycle, and the fact that they are less dangerous than current battery materials. Li-ion battery components, especially the cathode, are the intercalation places for lithium, which plays an important role in battery performance. This study aims to obtain the LiNixMnyCozO2 (NMC) cathode material using a simple flash coprecipitation method. As precipitation agents and pH regulators, oxalic acid and ammonia are widely available and inexpensive. The composition of the NMC mole ratio was varied, with values of 333, 424, 442, 523, 532, 622, and 811. As a comprehensive study of NMC, lithium transition-metal oxide (LMO, LCO, and LNO) is also provided. The crystal structure, functional groups, morphology, elemental composition and material behavior of the particles were all investigated during the heating process. The galvanostatic charge–discharge analysis was tested with cylindrical cells and using mesocarbon microbeads/graphite as the anode. Cells were tested at 2.7–4.25 V at 0.5 C. Based on the analysis results, NMC with a mole ratio of 622 showed the best characteristicd and electrochemical performance. After 100 cycles, the discharged capacity reaches 153.60 mAh/g with 70.9% capacity retention.


2013 ◽  
Vol 2 (1) ◽  
pp. 67-71
Author(s):  
Rahul Singhal ◽  
Rajesh Katiyar ◽  
Karina Asmar ◽  
Ram S. Katiyar

2016 ◽  
Vol 201 ◽  
pp. 8-19 ◽  
Author(s):  
Lina Cong ◽  
Qin Zhao ◽  
Zhao Wang ◽  
Yuhang Zhang ◽  
Xinglong Wu ◽  
...  

2009 ◽  
Vol 180 (4-5) ◽  
pp. 377-380 ◽  
Author(s):  
Xiaojie Sun ◽  
Xiaohong Hu ◽  
Yan Shi ◽  
Shengxian Li ◽  
Yuanquan Zhou

2019 ◽  
Vol 33 (15) ◽  
pp. 1950151 ◽  
Author(s):  
Roberts Eglitis

Current commercially available rechargeable Li-ion batteries, for example LiCoO2, are working mostly in the 4 V regime. One often suggested possibility to improve the effectivity of Li-ion batteries are the creation of the 5 V cathode materials. We performed quantum mechanical calculations on the average battery voltage for the Li2Co[Formula: see text]Mn[Formula: see text]O8 (x = 0, 1, 2, 3 and 4) cathode materials by means of the WIEN2k computer program package. The calculated average battery voltages for x = 0, 1, 2, 3 and 4 are equal to 3.95, 5, 4.47, 4.19 and 3.99 V. Our ab initio calculation results are compared with the available experimental data for x = 0, 1, 2 and 4 which are equal to 4, 5, 5 and 4 V. Thereby, for the Li2Co1Mn3O8 battery cathode material, our calculated average battery voltage around 5 V is in perfect agreement with the experimentally available battery voltage value of 5 Volt. Nevertheless, our calculated average battery voltage is underestimated (4.47 V) for the Li2Co2Mn2O8 cathode material, which also experimentally exhibits the 5 V voltage.


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