US 12,249,739 B2
Three-dimensional battery having current-reducing devices corresponding to electrodes
Ashok Lahiri, Cupertino, CA (US); and Robert M. Spotnitz, Pleasanton, CA (US)
Assigned to Enovix Corporation, Fremont, CA (US)
Filed by Enovix Corporation, Fremont, CA (US)
Filed on Jul. 11, 2023, as Appl. No. 18/220,690.
Application 18/220,690 is a continuation of application No. 16/777,142, filed on Jan. 30, 2020, abandoned.
Application 16/777,142 is a continuation of application No. 14/858,113, filed on Sep. 18, 2015, abandoned.
Application 14/858,113 is a continuation of application No. 12/013,397, filed on Jan. 11, 2008, granted, now 9,166,230, issued on Oct. 20, 2015.
Claims priority of provisional application 60/884,843, filed on Jan. 12, 2007.
Claims priority of provisional application 60/884,828, filed on Jan. 12, 2007.
Prior Publication US 2024/0030569 A1, Jan. 25, 2024
Int. Cl. H01M 50/581 (2021.01); H01M 4/13 (2010.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/64 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 10/42 (2006.01); H01M 4/02 (2006.01); H01M 50/574 (2021.01); H01M 50/583 (2021.01)
CPC H01M 50/581 (2021.01) [H01M 4/13 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 4/64 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/058 (2013.01); H01M 10/4235 (2013.01); H01M 2004/021 (2013.01); H01M 50/574 (2021.01); H01M 50/583 (2021.01); H01M 2200/106 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A battery comprising
a battery enclosure,
a first layer comprising an anode current collector,
a plurality of anodes extending from the first layer and electrically connected, in parallel, to the anode current collector by parallel electrically conductive anode pathways, the plurality of anodes comprises more than one anode,
a second layer comprising a cathode current collector,
a plurality of cathodes extending from the second layer and electrically connected, in parallel, to the cathode current collector by parallel electrically conductive cathode pathways, the plurality of cathodes comprises more than one cathode, and
an electrical current-reducing device layer,
wherein
the anode current collector, the plurality of anodes, the electrically conductive anode pathways, the cathode current collector, the plurality of cathodes, the electrically conductive cathode pathways, the first and second layers, and the electrical current-reducing device layer are within the battery enclosure,
the plurality of anodes and the plurality of cathodes are interdigitated and in direct contact with a common electrolyte for ion exchange between the anodes and the cathodes during operation of the battery,
each member of the plurality of anodes has a surface area, ignoring porosity and surface roughness, that exceeds its geometrical footprint in the first layer by a factor of at least 2,
each member of the plurality of cathodes has a surface area, ignoring porosity and surface roughness, that exceeds its geometrical footprint in the second layer by a factor of at least 2, and
wherein (i) each anode of the plurality of anodes is individually connected in parallel to the anode current collector through the electrical current-reducing device layer, or (ii) each cathode of the plurality of cathodes is individually connected in parallel to the cathode current collector through the electrical current-reducing device layer, the electrical current-reducing device layer comprising electrically conductive particles.