Lifepo4 Battery Long Life 48V Lithium Battery 400AH 20KW Inverted Battery Lithium Ion For ESS

Electrical Characteristics	Model	48V 400Ah (Customizable LCD)
	Energy	20480WH
	Months Self Discharge	<3%
Standard Charge	Charge Voltage	53.2-54V
	Charge Mode	0.2C to 54V, then 54V,charge current to 0.02C (CC/CV)
	Charger Current	200A
	Max. Charge Current	400A
	Charge Cut-off Voltage	57.6±0.2V
Standard Discharge	Max continuous discharge current	400A
	Discharge Cut-off Voltage	42V
Cycle life	2000 Cycles(100%DOD)
	5000 Cycles(80%DOD)
Environmental	Charge Temperature	0 ℃ to 45 ℃ (32F to 113F) @60±25% Relative Humidity
	Discharge Temperature	-20 ℃ to 60 ℃ (-4F to 140F) @60±25% Relative Humidity
	Water Dust Resistance	Customizable
Mechanical	Cell & Method	3.2V50Ah 16S8P
	Shell material	Iron
	Dimensions (in./mm.)	Customized
	Weight (lbs./kg.)	Approx: 170kg
	Gravimetric specific energy	90.5WH/KG

Through a combination of computer modeling work at CMU and experimental tests at MIT, the researchers hope to show that halide-enriched battery cells can electrochemically form a lithium-halide-based solid electrolyte to protect lithium metal electrodes. Electrolytes are the barrier through which the active elements of a battery, for example, lithium ions, cycle back and forth between a positive electrode and a negative electrode.

The researchers hope the combination of a lithium-halide solid electrolyte with lithium metal negative electrodes will slow or prevent the buildup of icicle-like metal filaments, known as “dendrites,” that build up on the metal electrode. This unwanted buildup eventually leads to battery failure. The researchers believe the iodine-enhanced electrolyte may offer a “self-healing” process that protects the electrode from sprouting these dendrites. Under this project, they will develop prototype batteries, whose performance can be compared to similar lithium batteries without halide additives.

MIT postdoc Linsen Li and undergraduate senior Harry Thaman are working on the MIT portion of the project.