Direct observation of the in-plane crack formation of O3-Na0.8Mg0.2Fe0.4Mn0.4O2 due to oxygen gas evolution for Na-ion batteries

2021 ◽  
Author(s):  
Suyeon Lee ◽  
Sung Wook Doo ◽  
Min Soo Jung ◽  
Shin Gwon Lim ◽  
Kanghyeon Kim ◽  
...  
Keyword(s):  
Transition Metal ◽  
Direct Observation ◽  
Cathode Materials ◽  
Failure Modes ◽  
Crack Formation ◽  
Electrical Contact ◽  
Gas Evolution ◽  
Metal Dissolution ◽  
Oxide Cathode ◽  
Oxygen Gas

Crack formation is considered one of the significant failure modes of layered oxide cathode materials for Na-ion batteries because particle cracks accelerate electrolyte decomposition, transition metal dissolution, and electrical contact...

Shape-controlled synthesis of hierarchically layered lithium transition-metal oxide cathode materials by shear exfoliation in continuous stirred-tank reactors

2017 ◽  
Vol 5 (48) ◽  
pp. 25391-25400 ◽  
Author(s):  
Weibo Hua ◽  
Zhenguo Wu ◽  
Mingzhe Chen ◽  
Michael Knapp ◽  
Xiaodong Guo ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Cathode Materials ◽  
Stirred Tank ◽  
Controlled Synthesis ◽  
Stirred Tank Reactors ◽  
Oxide Cathode ◽  
Layered Cathode Materials ◽  
Shape Controlled ◽  
Continuous Stirred Tank

A scalable and continuous synthesis technique for hierarchically structured layered cathode materials with exposed {010} planes is proposed.

Enhanced cycling stability of boron-doped lithium-rich layered oxide cathode materials by suppressing transition metal migration

2019 ◽  
Vol 7 (7) ◽  
pp. 3375-3383 ◽  
Author(s):  
Zhenhe Sun ◽  
Lingqun Xu ◽  
Caiqiao Dong ◽  
Hongtao Zhang ◽  
Mingtao Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Cathode Materials ◽  
Cycling Stability ◽  
Capacitive Performance ◽  
Layered Oxide ◽  
Boron Doped ◽  
Oxide Cathode ◽  
Attractive Candidate ◽  
Metal Migration

Lithium-rich layered oxide (LLO) has been considered as an attractive candidate due to its high capacitive performance.

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