Deep cycle 3.2V 587Ah LiFePO4 BATTERY CELL

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Description

Product Overview

The EA587 is a high-capacity 587Ah LiFePO4 (Lithium Iron Phosphate) cell, specifically engineered for utility-scale and commercial & industrial (C&I)

energy storage systems. With a nominal energy of 1878.4Wh and an energy density of ≥185Wh/kg, this cell delivers exceptional performance, safety, and longevity.

Designed with a robust prismatic aluminum casing, the ST587P050A supports ultra-long cycle life of ≥10,000 cycles and a wide discharge temperature range of -30°C to 60°C. It is an ideal core component for Battery Energy Storage Systems (BESS), grid ancillary services, and renewable energy integration.

Key Benefits

Ultra-High Capacity: 587Ah nominal capacity and 1878.4Wh energy per cell, reducing the number of cells required per system and lowering overall BESS cost.
Extraordinary Cycle Life: ≥10,000 cycles at 0.5P, 25°C (capacity retention ≥70%), ensuring long-term operational reliability and a lower Levelized Cost of Storage (LCOS).
High Energy Density: ≥185Wh/kg, enabling more compact and efficient module designs.
Wide Operating Temperature: Discharge from -30°C to 60°C and charge from 0°C to 60°C, suitable for diverse and harsh climate conditions.
Low Self-Discharge: ≤3.0% per month, maintaining stability during long-term storage.

Technical Specifications

1. Electrical Characteristics

Item	Specification
Model	ST587P050A
Chemistry	LiFePO4 (LFP)
Nominal Capacity	587Ah
Nominal Voltage	3.2V
Nominal Energy	1878.4Wh
Operating Voltage	2.5V–3.65V (T > 0°C) / 2.0V–3.65V (T < 0°C)
Internal Resistance (1kHz)	(0.14 ± 0.05) mΩ @ 27% SOC
Self-Discharge	≤3.0% per month
Energy Density	≥185Wh/kg

2. Mechanical Dimensions

Item	Specification
Weight	(10.20 ± 0.20) kg (with insulation film)
Height (excl. terminals)	214.03 ± 0.5 mm
Height (incl. terminals)	216.30 ± 0.5 mm
Thickness	73.50 ± 0.5 mm
Width (A-B zone)	286.00 ± 0.5 mm
Width (C-D zone)	285.34 ± 0.5 mm
Terminal Center Distance	170 ± 0.3 mm
Terminal Welding Area	Φ18mm ~ Φ28mm

3. Environmental & Performance

Item	Specification
Charge Temperature	0°C ~ 60°C
Discharge Temperature	-30°C ~ 60°C
Storage Temperature	-20°C ~ 35°C
-20°C Discharge Capacity	≥70% of nominal capacity
55°C Discharge Capacity	≥95% of nominal capacity
Continuous Charge/Discharge Temp. Rise	≤10°C
Cycle Life	≥10,000 cycles (25°C, 0.5P, to 70% capacity)

BMS Protection Parameters (Minimum Requirements)

For safe and optimal operation, the Battery Management System (BMS) must integrate the following protection thresholds:

Protection Item	Threshold	Action
Charge Termination	3.65V	Request to stop charging
Over-charge Level 1	≥3.7V	Force stop charging
Over-charge Level 2	≥3.8V	Force stop charging & lock BMS
Discharge Termination	2.5V (T>0°C) / 2.0V (T<0°C)	Request to stop discharging
Over-discharge Level 1	2.4V (T>0°C) / 1.8V (T<0°C)	Force stop discharging
Over-discharge Level 2	2.0V (T>0°C) / 1.6V (T<0°C)	Force stop discharging, charge to 50% SOC with 0.1C, and lock BMS
Overcurrent Protection	≤752.0A	Disconnect circuit
Overheat Protection	Cell temp ≤60°C	Stop charge/discharge
Low-Temp Protection	Charge: >0°C / Discharge: ≥-30°C	Stop charge/discharge
Short Circuit Protection	No short circuit allowed	Disconnect via relay

Note: Strict compliance with these BMS parameters is mandatory for warranty validity and safe operation.

Applications

Utility-scale Battery Energy Storage Systems (BESS)
Commercial & Industrial (C&I) Energy Storage
Solar & Wind Renewable Energy Integration
Grid Frequency Regulation and Peak Shaving
Microgrid and Off-grid Energy Storage

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