US 12,261,306 B2
Batteries providing high power and high energy density
Denis Gaston Fauteux, Kwai Chung (HK); and Aditya Subramanian, Kwai Chung (HK)
Assigned to Techtronic Cordless GP, Anderson, SC (US)
Filed by Techtronic Cordless GP, Anderson, SC (US)
Filed on Jan. 10, 2020, as Appl. No. 16/739,823.
Prior Publication US 2021/0217999 A1, Jul. 15, 2021
Int. Cl. H01M 50/538 (2021.01); H01M 10/0525 (2010.01); H01M 50/107 (2021.01); H01M 50/531 (2021.01)
CPC H01M 50/107 (2021.01) [H01M 10/0525 (2013.01); H01M 50/531 (2021.01)] 25 Claims
OG exemplary drawing
 
1. A lithium-ion battery (LiB) comprising:
an anode;
a cathode;
an electrolyte;
a cylindrical housing, wherein the anode and cathode are juxtaposed in a roll configuration in which each of the anode and the cathode comprise a concentric spiral portion that is interleaved with the concentric spiral portion of the other within the cylindrical housing, wherein the electrolyte is disposed between facing surfaces of the anode and the cathode in the roll configuration;
a continuous electrode member of a first electrode configuration disposed along a first longitudinal edge of a first electrode of the LiB, wherein the first electrode is either the anode or the cathode and a second electrode of the LiB is the other of the anode or the cathode, the continuous electrode member comprising a continuous length of first electrode material over a length greater than twice a size of an outer circumference of the roll configuration and extending beyond a first end of the concentric spiral portion of the first electrode that is interleaved with the second electrode in the roll configuration, wherein adjacent concentric portions of the continuous length of the first electrode material are compressed together forming a compressed uniform surface directly coupled to a negative terminal or a positive terminal of the cylindrical housing; and
a plurality of electrode tabs of a second electrode configuration disposed along a second longitudinal edge of the second electrode, the plurality of electrode tabs comprising tabbed instances of second electrode material unequally spaced over the length greater than twice the size of the outer circumference of the roll configuration and extending beyond a second end of the concentric spiral portion of the second electrode that is interleaved with the first electrode in the roll configuration, wherein adjacent concentric portions of the tabbed instances of second electrode material are compressed together forming a compressed single tab unit having a juxtaposed alignment of the plurality of electrode tabs coupled to a solder pad of battery monitoring electronics disposed between the second electrode and the other of the negative terminal or the positive terminal of the cylindrical housing, wherein:
the first electrode configuration and the second electrode configuration configure the LiB to deliver 110 Watt hours per kilogram (Wh/kg) while discharging at greater than 2 kiloWatts per kilogram (kW/kg).