A cathode is an electrode from which a conventional current leaves a polarized electrical device. This definition can be recalled by using the mnemonic CCD for Cathode Current Departs. A conventional current describes the direction in which positive charges move.
High-voltage lithium nickel manganese oxide (LiNio.5Mn1.5O4) cathode material, suitable for various lithium-ion batteries, has the advantages of high voltage, long cycle life, good rate performance, high energy density, etc. It is a new generation of lithium-ion battery cathode material.
Items
Specification
Typical value
Remark
Appearance
Gray-black powder, color
uniform, no caking
Gray-black powder, color
uniform, no caking
Visual inspection
Tap density
g/cm3
>1.2
1.42
Tap density tester
Particle size
(um)
D10
>0.8
1.8
Omega laser particle size analyzer
D50
3.0-6.5
4.2
D90
<15.0
9.0
First discharge specific capacity
（mAh/g）
>125
133.7
0.1C coin cellVS.Li
(3.5V-4.95V)
First efficiency
>90%
92.90%
0.1C coin cellVS.Li
Compaction density
（g/cm3）
>2.9
3.0
Full battery test
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