Synthesis and Electrochemical Performance of High Voltage (4.9 V) Cycling LiNixCoyMn1-x-yO2 Cathode Materials for Lithium Rechargeable Batteries

2010 ◽  
Keyword(s):  
Electrochemical Performance ◽  
High Voltage ◽  
Cathode Materials ◽  
Rechargeable Batteries ◽  
Lithium Rechargeable Batteries

A stable high-voltage lithium-ion battery realized by an in-built water scavenger

2020 ◽  
Vol 13 (4) ◽  
pp. 1197-1204 ◽  
Author(s):  
Zhi Chang ◽  
Yu Qiao ◽  
Han Deng ◽  
Huijun Yang ◽  
Ping He ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
High Voltage ◽  
Metal Organic Framework ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Simple Metal ◽  
Lithium Rechargeable Batteries ◽  
Metal Organic ◽  
Organic Framework

A simple metal–organic framework (MOF) based in-built water scavenger can efficiently eliminate various hazards induced by water in lithium rechargeable batteries.

scholarly journals Self-Substitution and the Temperature Effects on the Electrochemical Performance in the High Voltage Cathode System LiMn1.5+xNi0.5−xO4 (x = 0.1)

2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Yun Xu ◽  
Mingyang Zhao ◽  
Syed Khalid ◽  
Hongmei Luo ◽  
Kyle S. Brinkman
Keyword(s):  
Electrochemical Performance ◽  
High Voltage ◽  
Cathode Materials ◽  
Metal Ion ◽  
Structural Changes ◽  
Rate Capability ◽  
Performance Testing ◽  
Capacity Loss ◽  
Stable Performance ◽  
Li Ion

The high voltage cathode material, LiMn1.6Ni0.4O4, was prepared by a polymer-assisted method. The novelty of this work is the substitution of Ni with Mn, which already exists in the crystal structure instead of other isovalent metal ion dopants which would result in capacity loss. The electrochemical performance testing including stability and rate capability was evaluated. The temperature was found to impose a change on the valence and structure of the cathode materials. Specifically, manganese tends to be reduced at a high temperature of 800 °C and leads to structural changes. The manganese substituted LiMn1.5Ni0.5O4 (LMN) has proved to be a good candidate material for Li-ion battery cathodes displaying good rate capability and capacity retention. The cathode materials processed at 550 °C showed a stable performance with negligible capacity loss for 400 cycles.

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