US 12,021,181 B2
System and method for reducing electrical interference of a battery cell
Katherine I. Pregler, Santa Clara, CA (US); Kyle Tse, Fremont, CA (US); Samantha K. Young, San Francisco, CA (US); Jason W. Brinsfield, Mountain View, CA (US); Mei Zhang, Danbury, CT (US); Charles Greenlee, Sunnyvale, CA (US); Kevin R. Richardson, Sunnyvale, CA (US); Susheel Teja Gogineni, Santa Clara, CA (US); Ethan L. Huwe, Sunnyvale, CA (US); Connor R. Duke, Sunnyvale, CA (US); Michael B. Nussbaum, Santa Cruz, CA (US); Shawn G. Fink, Sunnyvale, CA (US); and Kirill Kalinichev, San Francisco, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 11, 2020, as Appl. No. 17/018,102.
Claims priority of provisional application 62/939,449, filed on Nov. 22, 2019.
Claims priority of provisional application 62/900,259, filed on Sep. 13, 2019.
Prior Publication US 2021/0083315 A1, Mar. 18, 2021
Int. Cl. H01M 10/04 (2006.01); H01M 50/169 (2021.01); H01M 50/598 (2021.01)
CPC H01M 10/0431 (2013.01) [H01M 50/169 (2021.01); H01M 50/598 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A battery, comprising:
a wound set of layers comprising a cathode, an anode, and a separator disposed between the cathode and the anode, wherein the cathode and the anode have different lengths;
a can housing the wound set of layers;
a lid disposed atop of the can to enclose the wound set of layers within the can;
a first tab extending from one of the cathode and anode, the first tab coupled to the lid;
a second tab extending from the other of the cathode and anode, the second tab coupled to the can;
a tag coupled to the lid;
wherein a current flowing through an unopposed portion of the cathode or anode generates a first electromagnetic field; and
wherein the current flowing through the tag generates a second electromagnetic field, wherein the second electromagnetic field opposes the first electromagnetic field.