Improving Cycling Stability and Rate Capability of High-Voltage LiCoO2 Through an Integration of Lattice Doping and Nanoscale Coating

Overall structural modification, integrating coating and doping, was developed to enhance the structural stability and Li+ transport kinetics in a layered Ni-rich cathode, which significantly improves the electrochemical performance at high voltage.

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Enhanced high-voltage cycling stability and rate capability of magnesium and titanium co-doped lithium cobalt oxides for lithium-ion batteries

Applied Surface Science ◽

10.1016/j.apsusc.2018.07.091 ◽

2018 ◽

Vol 458 ◽

pp. 111-118 ◽

Cited By ~ 15

Author(s):

Meiling Zhang ◽

Ming Tan ◽

Hongyuan Zhao ◽

Shanshan Liu ◽

Xiaohui Shu ◽

...

Keyword(s):

Lithium Ion Batteries ◽

High Voltage ◽

Rate Capability ◽

Lithium Ion ◽

Cycling Stability ◽

Cobalt Oxides ◽

Co Doped ◽

Lithium Cobalt

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Enhanced high-rate capability and high voltage cycleability of Li2TiO3-coated LiNi0.5Co0.2Mn0.3O2 cathode materials

RSC Advances ◽

10.1039/c6ra20035d ◽

2016 ◽

Vol 6 (91) ◽

pp. 88713-88718 ◽

Cited By ~ 10

Author(s):

Yan Mo ◽

Bo Hou ◽

De Li ◽

Xiaobo Jia ◽

Bokai Cao ◽

...

Keyword(s):

High Voltage ◽

Cathode Materials ◽

Rate Capability ◽

Cycling Stability ◽

High Rate ◽

High Rate Capability

For LiNi0.5Co0.2Mn0.3O2 materials, poor cycling stability is commonly observed under high-voltage operation (>4.3 V), particularly when accompanied by high-rate operation.

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Unveiling the Synergic Roles of Mg/Zr Co-Doping on Rate Capability and Cycling Stability of Li4Ti5O12

Journal of The Electrochemical Society ◽

10.1149/2.0791904jes ◽

2019 ◽

Vol 166 (4) ◽

pp. A658-A666 ◽

Cited By ~ 6

Author(s):

Zhenya Wang ◽

Limei Sun ◽

Wenyun Yang ◽

Jinbo Yang ◽

Kai Sun ◽

...

Keyword(s):

Rate Capability ◽

Cycling Stability ◽

Co Doping

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Strategically Controlled Flash Irradiation on Silicon Anode for Enhancing Cycling Stability and Rate Capability toward High-Performance Lithium-Ion Batteries

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c22983 ◽

2021 ◽

Vol 13 (13) ◽

pp. 15205-15215

Author(s):

Jae Young Seok ◽

Sanha Kim ◽

Inyeong Yang ◽

Jung Hwan Park ◽

Jaehak Lee ◽

...

Keyword(s):

Lithium Ion Batteries ◽

High Performance ◽

Rate Capability ◽

Lithium Ion ◽

Cycling Stability ◽

Silicon Anode

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Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

Nano-Micro Letters ◽

10.1007/s40820-021-00691-7 ◽

2021 ◽

Vol 13 (1) ◽

Author(s):

Shouxiang Ding ◽

Mingzheng Zhang ◽

Runzhi Qin ◽

Jianjun Fang ◽

Hengyu Ren ◽

...

Keyword(s):

Graphene Oxide ◽

Manganese Oxides ◽

Rate Capability ◽

High Energy ◽

Zinc Ion ◽

Cycling Stability ◽

High Rate ◽

High Energy Density ◽

Superior Performance ◽

Long Life

AbstractRecent years have witnessed a booming interest in grid-scale electrochemical energy storage, where much attention has been paid to the aqueous zinc ion batteries (AZIBs). Among various cathode materials for AZIBs, manganese oxides have risen to prominence due to their high energy density and low cost. However, sluggish reaction kinetics and poor cycling stability dictate against their practical application. Herein, we demonstrate the combined use of defect engineering and interfacial optimization that can simultaneously promote rate capability and cycling stability of MnO2 cathodes. β-MnO2 with abundant oxygen vacancies (VO) and graphene oxide (GO) wrapping is synthesized, in which VO in the bulk accelerate the charge/discharge kinetics while GO on the surfaces inhibits the Mn dissolution. This electrode shows a sustained reversible capacity of ~ 129.6 mAh g−1 even after 2000 cycles at a current rate of 4C, outperforming the state-of-the-art MnO2-based cathodes. The superior performance can be rationalized by the direct interaction between surface VO and the GO coating layer, as well as the regulation of structural evolution of β-MnO2 during cycling. The combinatorial design scheme in this work offers a practical pathway for obtaining high-rate and long-life cathodes for AZIBs.

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