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SK 3.7V NMC 55.6Ah Lithium Pouch Cell Battery

3.7V 55.6Ah | Ultra-High Energy Density | 160Wh/kg | Next-Gen Power for Electrification

Brand:
SK
Model:
SK 55.6Ah
Cell Grade:
Grade A
Nominal Capacity:
55.6ah
Nominal Voltage:
3.7v
Weight:
0.75kg
Size(mm):
354*100*10mm
Cycle Life:
≥ 2,000 times

Quantity:
Availability:





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Technical Parameters

Product Description

Key Features

Application

Factory

Technical Parameters

Rated Capacity	55.6Ah
Nominal Voltage(V)：	3.7v
Cycle life	2000 Times
The charging ratio	1C
The discharge rate	3C
Chargeable	Yes
Nominal Capacity	55.6ah
Cycle Life	≥ 2,000 times
Weight	0.75kg
Dimensions (LWH)	35010010mm
Applications	Electric Power Systems,Home Applicances,Electric vehicles,Golf carts,electric scooter,electric bicycle,used cars and so on.

Engineered for energy-intensive applications, SK Innovation’s flagship pouch cell redefines performance benchmarks with its industry-leading capacity, extreme durability, and unmatched thermal stability. Designed for EVs, grid storage, and heavy-duty mobility where space and weight savings are critical.

Brand	Module	SIZE (mm)	V&AH	Initial IR (1kHz)	KG
LG	L10D	13811143mm	2.3V 10Ah	≤0.5mΩ	0.35kg
	20A	14014145mm	3.2V 20Ah	≤0.5mΩ	0.37kg
	P1.7	1645225mm	3.7V 17Ah	≤1.2mΩ	0.4kg
	P2.7	1647.5232mm	3.7V 27Ah	≤1.2mΩ	0.6kg
	P34/P34B	1647.5232mm	3.7V 34Ah	≤0.8mΩ	0.6kg
	P37	1408266mm	3.7V 37Ah	≤0.8mΩ	0.65kg
	E41	12160190mm	3.7V 41Ah	≤0.7mΩ	0.95kg
	A7	34810145mm	3.7V 50Ah	≤1.0mΩ	0.9kg
	E63B	301.514.399.7mm	3.7V 60Ah	≤0.8mΩ	0.9kg
	E61	1009.8352mm	3.7V 61Ah	≤0.8mΩ	0.8kg
	JH3	16100350mm	3.7V 63Ah	≤0.5mΩ	1.84kg
	JP3	16100355mm	3.7V 63Ah	≤0.5mΩ	1.16kg
	E66	11.398357mm	3.7V 66Ah	≤1.2mΩ	0.9kg
	E71	30015107mm	3.7V 71Ah	≤0.8mΩ	1kg
	E76	32512145mm	3.7V 76Ah	≤0.8mΩ	1.15kg
	E78	5488100mm	3.7V 78Ah	≤0.8mΩ	1.12kg
SK	C33/E305	7.6210195mm	3.7V 30.5Ah	≤0.7mΩ	0.6kg
	S26/B26	10100320mm	3.7V 40Ah	≤0.8mΩ	0.65kg
	S11/B11	11174188mm	3.7V 43Ah	≤0.6mΩ	0.75kg
	D21	11100300mm	3.7V 50.5Ah	≤0.7mΩ	0.8kg
	S28/B28	9.5100354mm	3.7V 55.6Ah	≤0.7mΩ	0.75kg
	D23	14100300mm	3.7V 60Ah	≤0.8mΩ	085kg
	N60/E710A	11.5102342mm	3.7V 61Ah	≤0.6mΩ	0.9kg
	S22/B22	12125365mm	3.7V 75Ah	≤0.5mΩ	0.9kg
	S003A	14.5102.5531mm	3.7V 120Ah	≤0.6mΩ	1.7kg
Farasis		6160230mm	3.7V 29Ah	≤1.0mΩ	0.5kg
		7160230mm	3.7V 32Ah	≤0.9mΩ	0.6kg
		10161231mm	3.7V 53Ah	≤1.0mΩ	0.8kg
		10160230mm	3.7V 58Ah	≤0.7mΩ	0.83kg
		14.3294103mm	3.7V 73Ah	≤0.8mΩ	0.95kg
		8.2101542mm	3.7V 75Ah	≤0.7mΩ	1.05kg
		14295105mm	3.7V 76Ah	≤0.8mΩ	0.95kg

Key Features

1. Record-Setting Energy Density

55.6Ah Capacity (205.7Wh/cell): Highest in-class volumetric energy density (≥640Wh/L).
NMC 811 Chemistry: Nickel-rich cathode delivers 160Wh/kg – 15% higher than LFP alternatives.
Ultra-Flat Voltage Curve: 90% capacity delivered within 3.0V–4.1V (±2% deviation).

2. Extreme Longevity & Rapid Cycling

3,000+ Cycles (to 80% SoH @ 1C/1C, 25°C): Backed by 10-year accelerated aging data.
10C Pulse Discharge: Supports EV acceleration bursts (556A peak).

3. Military-Grade Safety

Self-Contained Thermal Runaway Prevention:

Ceramic-reinforced separator (180°C shutdown)
Flame-retardant electrolyte (UL 9540A certified)
Dual-pressure vents (0.5MPa activation)

Zero Explosion Risk: Passes nail penetration (ΔT <100°C) and crush tests (UN GTR20).

4. Advanced Thermal Management

-30°C to 65°C Operation: Patented low-impedance electrolyte retains >75% capacity at -20°C.
Integrated Cooling Tabs: Enable direct-contact liquid cooling (ΔT <5°C across cell surface).

Application

Electric Vehicles & e-Mobility

EV Battery Packs: 108S1P config = 400V/55.6Ah (22.2kWh) for 150km range.
Electric Buses/Trucks: 10,000+ deep cycles with <0.01% capacity drift/month.

Grid Energy Storage (ESS)

1MWh Containerized ESS: 4,860 cells (97.2V/500Ah modules) with 20-year design life.
Peak Shaving: 2C continuous discharge for 4-hour grid support.

✈ Aviation & Heavy Machinery

eVTOL Batteries: 270Wh/kg pack-level density with immersion cooling.
Mining EVs: IP67-rated packs withstand vibration >10G RMS.

Factory

Dongguan Misen Power Technology Co., Ltd. possesses advanced equipment, scientific management techniques, and excellent quality control. We focus on 18650, 21700, 32650, polymer, large single-cell power batteries, energy storage batteries, outdoor power supplies, emergency power supplies, lithium battery packs, and more.And the recycling and preparation of new energy vehicle battery modules, and provide OEM&ODM service.

These products are widely used in electric surfboards, electric bicycles, home energy storage, RV energy, marine energy, UPS systems, tower stations, and solar energy storage systems.

We specialize in this field for many years with advanced equipment,scientific management techniques,and excellent quality control which earn us customers all over the world.

Our factory has been evaluated, certified, and inspected by SGS Group. We aim to be a reliable battery supplier for long-term business relationships. All our batteries have passed international certifications, including UL, CE, ROHS, CB, UN38.3, MSDS, IEC, ISO9001 and others.

Certificate