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Sodium Ferric Pyrophosphate NFPP Sodium Ion Battery Cathode Material

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Sodium Ferric Pyrophosphate NFPP Sodium Ion Battery Cathode Material

Name: Sodium Ferric Pyrophosphate NFPP Sodium Ion Battery Cathode Material
Brand: XWELL
Price: 1 USD

Brand Name : XWELL

Model Number : NFPP

Place of Origin : CHINA

MOQ : 20g

Payment Terms : T/T

Delivery Time : 5-8 work days

Packaging Details : Plastic box

Electrolyte : Organic solvent-based electrolyte

Anode Material : Graphite, Silicon, or Lithium Titanate

Weight : Varies depending on type of cell

Cathode Material : Lithium Cobalt Oxide, Lithium Manganese Oxide, or Lithium Nickel Cobalt Aluminum Oxide

Charge Rate : Varies depending on type of cell

Operating Temperature : -20 to 60 degrees Celsius

Capacity : 3.2V

Cycle Life : 2000-5000 cycles

Discharge Rate : Varies depending on type of cell

Shape : Cylindrical, prismatic, or pouch

Chemical Composition : Lithium Iron Phosphate

Safety Features : Thermal runaway protection, overcharge and overdischarge protection

Energy Density : 100-265 Wh/kg

Voltage : 3.2V

Size : Varies depending on type of cell

Price : 1-1000USD/Negotiable

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Sodium iron phosphophosphate (NaFePO₄F), often referred to as NFPP, is a novel cathode material for sodium-ion batteries. It offers several advantages, particularly in terms of cost-effectiveness and resource sustainability, making it a focal point of research in the field of sodium-ion batteries.

Product Overview

NFPP is a cathode material based on iron and phosphorus compounds. It provides a relatively high theoretical specific capacity, typically around 120-130 mAh/g, which is comparable to some lithium-based cathode materials.

Key Characteristics

High Energy Density: NFPP offers a relatively high theoretical specific capacity, typically around 120-130 mAh/g, which is comparable to some lithium-based cathode materials.
Good Stability: The material exhibits good thermal and chemical stability, making it safer and more reliable in battery applications.
Low Cost: Due to the abundance of sodium and the use of inexpensive precursors, NFPP has the potential to be a cost-effective alternative to lithium-based cathodes.
Environmental Sustainability: The production of NFPP involves fewer critical raw materials and lower environmental impact compared to lithium-based materials.

Structure and Synthesis

NFPP typically crystallizes in the olivine structure, similar to lithium iron phosphate (LFP). The synthesis of NFPP involves high-temperature solid-state reactions or sol-gel methods, often using precursors such as iron salts, phosphoric acid, and sodium salts.

Electrochemical Performance

Rate Capability: NFPP shows reasonable rate capability, although it may not match the high rates of some other sodium-based cathodes.
Cycling Performance: The material demonstrates good cycle life, with capacity retention over multiple charge-discharge cycles, making it suitable for long-term applications.
Voltage Profile: NFPP typically operates at a voltage range of about 3.4-3.5 V vs. Na/Na⁺, providing a stable output.

Applications

NFPP is being explored for various sodium-ion battery applications, including:

Grid Storage: Due to its cost-effectiveness and sustainability, NFPP is suitable for large-scale energy storage solutions.
Electric Vehicles: While still in the research phase, NFPP could offer a viable option for EVs where cost is a significant factor.
Portable Electronics: For devices where cost and sustainability are important, NFPP could be a competitive alternative to lithium-ion batteries.

Future Prospects

Ongoing research aims to improve the performance of NFPP through structural modifications, doping, and optimization of synthesis processes. Enhancements in energy density, rate capability, and cycle life are key areas of focus to make NFPP a mainstream material for sodium-ion batteries.

In summary, NFPP represents a promising alternative to lithium-based cathodes, offering a balance of performance, cost, and sustainability for various energy storage applications.

Test Item/Parameter	Unit	Specification	Test Result
Physical Indicators
Appearance	/	Gray-black powder, uniform color, no hard lumps	Gray-black powder, uniform color, no hard lumps
Particle Size Distribution D10	μm	≥0.4	0.576
Particle Size Distribution D50	μm	2.5±0.5	2.255
Particle Size Distribution D90	μm	≤8.5	6.502
Particle Size Distribution D100	μm	≤22	13.360
Compaction Density	g/cm³	1.9±0.1	1.89
Specific Surface Area	m²/g	18±3	18.214
pH Value	/	10±1	10.34
Moisture	ppm	≤1000	780
Chemical Indicators
Main Element Content	Na	%	14.9±0.5
	Fe	%	24.2±0.5
	P	%	20.1±0.5
	C	%	2.5±0.5
Impurity Element Content	Cr	ppm	≤50
	Zn	ppm	≤50
	Cu	ppm	≤10
	Ni	ppm	≤50
	Mn	ppm	≤200
	Mg	ppm	≤100
Magnetic Substance Content	ppm	≤1000	675
Half-Cell Data (1.5-4.0V)
0.1C Capacity	mAh/g	≥95	99.99
1C Capacity	mAh/g	≥95	95.54
5C Capacity	mAh/g	≥90	93.35
First Cycle Efficiency	%	100±5	100.56
Average Voltage	V	≥2.8	2.89
100C Capacity Retention	%	≥95	96.72

1	Specific Capacity	mAh/g	116	110	≥120	≥110*	Button cell, 4.25V-1.75V, 0.1C
2	First Charge Efficiency	%	86.2	89.9	≥92	≥90*	Button cell, 0.1C first charge discharge efficiency not less than 90%
3	Voltage Platform (during discharge)	V	3.02	3.03	≥3.0	≥3.4*	Button cell, 0.1C first discharge voltage not less than 3.0V
4	Rate Performance	%	89.9	91.6	≥92	≥92*	Button cell, IC discharge ratio capacity not less than 0.1C discharge ratio capacity of 92%
5	High Rate Performance	%	80	81.2	≥85	≥85*	Button cell, discharge ratio capacity not less than 0.1C discharge ratio capacity of 85%
6	Cycle Performance	%	97.6	97.1	≥98	≥92*	Button cell, IC charge-discharge cycle 200 times after discharge ratio capacity not less than first discharge ratio capacity of 92%

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