The patent filing represents a key milestone in the company’s “Project Magnus,” in which ACE will finalise cell design and chemistry for a highly efficient 1 metre cell-to-pack prismatic cell.
The VLF cell, when coupled with the company’s patented Advanced LFP (lithium iron phosphate) chemistry, will enable EV manufacturers to build vehicles offering greater range. Advanced LFP offers significantly higher energy density in any cell format than the existing LFP offerings on the market today. When used in the VLF cell, ACE’s Advanced LFP technology will achieve even greater energy density thanks to the cell’s very efficient design.
“We’re relentlessly focused on driving the EV battery market forward” said Tim Poor, president of Advanced Cell Engineering. “Today’s LFP technology has an energy density of about 160 Wh/kg, while our patented Advanced LFP chemistry has an energy density of up to 200 Wh/kg. The unique architecture of a new 1-metre VLF cell will increase energy density even further - to about 250 Wh/kg. ACE’s technology will reduce battery costs and increase EV range - something that’s important to both EV makers and drivers.”
The VLF battery cell has been designed to reduce the size, weight, and complexity of an EV’s battery system. Currently, EVs contain thousands of small cells assembled into a number of modules, which are in turn assembled into a battery pack. The ACE VLF cell will eliminate the need for the module structure by integrating 80-100 1 metre prismatic cells directly into the battery pack which is then installed into a vehicle’s chassis. ACE expects the cell design to be available for licensing in early 2023.
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