Suppressing capacity fading and voltage decay of Ni-rich cathode material by dual-ion doping for lithium-ion batteries

2020 ◽  
Vol 56 (3) ◽  
pp. 2347-2359
Author(s):  
Hao Liu ◽  
Ruikai Yang ◽  
Wen Yang ◽  
Changjiang Bai ◽  
Yong-Chun Li ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Capacity Fading ◽  
Voltage Decay ◽  
Ion Doping

A high-performance Ce and Sn co-doped cathode material with enhanced cycle performance and suppressed voltage decay for lithium ion batteries

2019 ◽  
Vol 45 (16) ◽  
pp. 20780-20787 ◽  
Author(s):  
Yanying Liu ◽  
Ranran Li ◽  
Jianling Li ◽  
Zhe Yang ◽  
Jianjian Zhong ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Voltage Decay ◽  
Co Doped

Effect of valence states of Ni and Mn on the structural and electrochemical properties of Li1.2NixMn0.8−xO2 cathode materials for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 53662-53668 ◽  
Author(s):  
Shaokun Chong ◽  
Yongning Liu ◽  
Wuwei Yan ◽  
Yuanzhen Chen
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Layered Oxides ◽  
Capacity Fading ◽  
Voltage Decay ◽  
Valence States

Severe capacity fading and voltage decay of Li-rich layered oxides for lithium-ion batteries remain the major bottlenecks to commercialization.

Mitigating Voltage Decay of Li-Rich Cathode Material via Increasing Ni Content for Lithium-Ion Batteries

2016 ◽  
Vol 8 (31) ◽  
pp. 20138-20146 ◽  
Author(s):  
Ji-Lei Shi ◽  
Jie-Nan Zhang ◽  
Min He ◽  
Xu-Dong Zhang ◽  
Ya-Xia Yin ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Voltage Decay ◽  
Ni Content

scholarly journals Mechanism of Capacity Fading in the LiNi0.8Co0.1Mn0.1O2 Cathode Material for Lithium-Ion Batteries

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1638 ◽  
Author(s):  
Yong-keon Ahn ◽  
Yong Nam Jo ◽  
Woosuk Cho ◽  
Ji-Sang Yu ◽  
Ki Jae Kim
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Particle Surface ◽  
Lithium Ion ◽  
High Energy ◽  
Capacity Fading ◽  
Factors Affecting ◽  
Primary Particles ◽  
Axis Length ◽  
By Products

Understanding the capacity fading mechanism of the LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode materials is crucial for achieving long-lasting lithium-ion batteries with high energy densities. In this study, we investigated the factors affecting the capacity fading of NCM811 during repeated cycling at high temperatures. We found that the change in the c-axis length during charging and discharging is the main cause of the formation and propagation of microcracks in the primary particles of NCM811. In addition, the electrolyte is decomposed on the microcrack surfaces and, consequently, by-products are formed on the particle surface, increasing the impedance and resulting in poor electronic and ionic connectivity between the primary particles of NCM811. In addition, the transition metals in the NCM811 cathode material are dissolved in the electrolyte from the newly formed microcrack surface between primary particles. Therefore, the electrolyte decomposition and transition metal dissolution on the newly formed surface are the major deteriorative effects behind the capacity fading in NCM811.

A 3D porous Li-rich cathode material with an in situ modified surface for high performance lithium ion batteries with reduced voltage decay

2016 ◽  
Vol 4 (19) ◽  
pp. 7230-7237 ◽  
Author(s):  
Xin He ◽  
Jun Wang ◽  
Rui Wang ◽  
Bao Qiu ◽  
Henrich Frielinghaus ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Surface Coating ◽  
High Performance ◽  
Lithium Ion ◽  
Voltage Decay ◽  
Modified Surface ◽  
Excellent Cycling Stability

Porous Li-rich cathode materials with carbonaceous surface coating, prepared by a template assisted approach, showed excellent cycling stability and notably mitigated voltage decay.

Lithium tracer diffusion in LiNi0.33Mn0.33Co0.33O2 cathode material for lithium-ion batteries

2021 ◽  
Vol 23 (10) ◽  
pp. 5992-5998
Author(s):  
Daniel Uxa ◽  
Helen J. Holmes ◽  
Kevin Meyer ◽  
Lars Dörrer ◽  
Harald Schmidt
Keyword(s):  
Activation Energy ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Tracer Diffusion ◽  
Arrhenius Law

Lithium tracer diffusivities in LiNi0.33Mn0.33Co0.33O2 cathode material for lithium-ion batteries follows the Arrhenius law with an activation energy of 0.85 eV.

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