AME-NFPP-YNN-4H Sodium Battery Cathode Material

Product Name: Sodium ferric pyrophosphate phosphate cathode material

Product model: YNN-4H

Product features: long cycle, excellent thermal stability and high safety.

Application direction: general power battery, polyanion battery, energy storage battery, etc.


Item

Unit

Standard value

Typical value

Test method

 

 

 

 

 

Physical index

 

Particle size distribution

D10

 

 

μm

1.0

1.42

GB/T 19077.1

Malvin laser particle size analyzer

D50

6.5±1.0

6.60

D90

15.0

13.52

D100

≤25

23.99

Specific surface area

m2/g

1.5

8.2

GB/T 13390 specific surface area analyzer

Compaction density

g/cm3

2.15±0.05

2.16

Compaction densimeter

Moisture

ppm

≤1000

780

Karl fischer moisture meter

pH value

/

10±1

10.58

Ph meter

 

 

 

 

 

 

 

 

Chemical index

Na

%

14.0±0.5

14.01

ICP

Fe

%

25±0.5

24.6

Potassium dichromate method

P

%

19.5±1.0

19.2

Molybdenum limonene precipitation method

C

%

1.7±0.2

1.71

Carbon-sulfur meter

Magnetic substance

ppb

≤1000

169

Magneton adsorption ICP

 

 

 

Microelement

Mn

ppm

≤200

13.5

 

 

 

ICP

Mg

ppm

≤100

23.1

Cu

ppm

≤10

N.D

Cr

ppm

≤50

18.2

Zn

ppm

≤50

29.5

Ni

ppm

≤50

0.6


Electrochemical performance:

 

Project

Unit

Standard value

Typical value

           Test method

First charge capacity

mAh/g

112

115.39

1.5-3.8V

0.1C/0.1C

2032 button half battery

First discharge capacity

mAh/g

100

103.73

Coulombic efficiency for the first time

%

88

89.89

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