Rechargeable Lithium Battery 18650 3200mah Best Rechargeable Batteries For Manufactures
|No||Battery Size||Battery Wrap||Battery Positve Terminal||Material||Nominal Voltage,
|1||18650||Black||Button Top /
|2||18650 with Cable Connector||Green||Flat Top||lithium ion||3.7V||4.25V||3.0V||18||65||2600mAh|
|3||18650 with Micro USB Charging Port||Red||Button Top||lithium ion||3.7V||4.25V||3.0V||18||65||2600mAh
Development of the battery began in 2012, when Chiang joined the Department of Energy’s Joint Center for Energy Storage Research, a five-year project that brought together about 180 researchers to collaborate on energy-saving technologies. Chiang, for his part, focused on developing an efficient battery that could reduce the cost of grid-scale energy storage.
A major issue with batteries over the past several decades, Chiang says, has been a focus on synthesizing materials that offer greater energy density but are very expensive. The most widely used materials in lithium-ion batteries for cellphones, for instance, have a cost of about $100 for each kilowatt hour of energy stored.
“This meant maybe we weren’t focusing on the right thing, with an ever-increasing chemical cost in pursuit of high energy-density,” Chiang says. He brought the issue to other MIT researchers. “We said, ‘If we want energy storage at the terawatt scale, we have to use truly abundant materials.’”