High Voltage Lithium Battery Manufacturer

High Voltage Lithium Battery

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The lithium battery system consists of rack, modules, battery management system (BMS), screen-touch control and protection system. The BMS is placed inside the battery to monitor the status of every cell, so the location of the faulty cell will automatically be identified. In addition, relays, fuses, circuit breakers and BMS are used for the protection of the battery packs.

Application

To meet industrial and commercial demand management, peak shaving
To serve as backup power
To conduct peak shaving during high power demand periods and valley filling during off-peak hours
Power storage, peak and frequency regulation
To build a microgrid system

System Topology

Features

Safe and Reliable

The battery has high quality LFP cell.
Designed with an intelligent air-cooling system to ensure long service life of battery with stable operation.
The Lithium battery features a built-in Battery Management System (or BMS) which ensures safety and long battery life by constantly monitoring battery performance, internal temperature, and other critical elements required in safely functioning battery.
Choosing a LiFEPO4 battery means lesser worries since it has a built-in protection system including a relay, fuse and circuit breaker against overcharging, undercharging, and short circuits.

Efficient and Convenient

A number of batteries can be paralleled to form a battery bank with maximum 1C charging and 2C discharging.
The battery is convenient for maintenance, management and capacity expansion.

Active equalization

Power is transferred in a more balanced way to reduce negative impact of single cell on battery capacity.
The equalization accuracy is less than 2%, and the equalization capacity can reach 10% of the rated output.

Lower Cost

Smaller size, lighter weight, less space and lower installation cost.
Long service life, low failure rate to reduce operation and maintenance cost.

Specification

Model		EFS768/100		EFS768/150	EFS768/200
Usable capacity		100Ah		150Ah	200Ah
Nominal voltage		768V
Nominal capacity		76.8kWh		115.2kWh	153.6kWh
Charge voltage		672V～852V						Single cell 2.8～3.55
Max. continuous charging current		100A（1C)		150A（1C)	200A（1C)
Max. continuous discharging current		100A(1C)		150A(1C)	200A(1C)			2C
Operating temperature		Charge: 0℃～45℃ discharge: -20℃～60℃
Optimal operating temperature		15℃～35℃
Storage temperature		-40℃～60℃						SOC: 20%~40%
Operating conditions		operating altitude: ＜2500m Relative humidity: < 95%（no condensation)）
Cooling		Air conditioning, intelligent fan regulation
Insulation resistance		＞500MΩ@1500VDC
Isolation and withstand voltage		2500VDC/1min
Internal power supply mode		24VDC						Built-in DC/DC
Static power consumption		35W						Typical value, module fan not included
Data display		7" TN true color LCD screen						Ratio: 5:3，resolution ratio 800×480
Water/dust resistance rating (ip)		IP21
Dimension（WDH）		1360mm650mm2000mm	1360mm650mm2000mm			1360mm650mm2000mm
Weight		1000kg	1350			1650
Life cycle		3000						1C@25℃ charging & discharging @80%DOD,EOL80%
Battery Management System (BMS)
Cell voltage acquisition range	1-5V
Cell voltage acquisition accuracy	≤10mV
Total voltage acquisition accuracy	±1V or ±1%
Current acquisition range	0～±200ADC		0~±375ADC（Rated±300ADC ）			0~±500ADC（Rated±400ADC ）
Current acquisition accuracy	≤1%
Temperature acquisition range	-20～125℃
Temperature acquisition accuracy	≤±1℃
SOC estimation accuracy	≤8%						Constant
SOH estimation accuracy	≤8%
Charging over current protection	＞1C，10S；
Discharging over current protection	＞1.2C，10S；
high temperature protection	Discharging＞60℃（20S） Charging＞55℃（20S）						The default is 15℃，and it can be set as wished
Low temperature protection	Discharging＜-20℃ （1S） Charging＜0℃ （1S）						The default 15℃，and it can be set as wished
Communication mode	CAN,RS485，dry contact