US 12,244,036 B2
Separators for three-dimensional batteries
Murali Ramasubramanian, Fremont, CA (US); Michael Armstrong, Danville, CA (US); Brian E. Brusca, Tracy, CA (US); Vladimir Dioumaev, San Jose, CA (US); Gunther A. Koblmiller, Oakley, CA (US); Ashok Lahiri, Cupertino, CA (US); Laurie J. Lauchlan, Saratoga, CA (US); Harrold J. Rust, III, Alamo, CA (US); Nirav S. Shah, Pleasanton, CA (US); Robert M. Spotnitz, Pleasanton, CA (US); and James D. Wilcox, Pleasanton, CA (US)
Assigned to Enovix Corporation, Fremont, CA (US)
Filed by Enovix Corporation, Fremont, CA (US)
Filed on Jun. 3, 2022, as Appl. No. 17/832,184.
Application 17/832,184 is a continuation of application No. 16/917,020, filed on Jun. 30, 2020, granted, now 11,355,816.
Application 16/917,020 is a continuation of application No. 15/997,252, filed on Jun. 4, 2018, granted, now 10,707,466, issued on Jul. 7, 2020.
Application 15/997,252 is a continuation of application No. 14/207,808, filed on Mar. 13, 2014, granted, now 9,991,490, issued on Jun. 5, 2018.
Claims priority of provisional application 61/800,235, filed on Mar. 15, 2013.
Prior Publication US 2022/0311094 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/446 (2021.01); H01M 4/13 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 10/04 (2006.01); H01M 10/052 (2010.01); H01M 10/0585 (2010.01); H01M 50/44 (2021.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01); H01M 50/403 (2021.01)
CPC H01M 50/446 (2021.01) [H01M 4/13 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 10/0472 (2013.01); H01M 10/052 (2013.01); H01M 10/0585 (2013.01); H01M 50/44 (2021.01); H01M 50/46 (2021.01); H01M 2004/021 (2013.01); H01M 50/403 (2021.01)] 24 Claims
OG exemplary drawing
 
1. An electrode structure comprising a population of electrodes comprising an electrode active material layer and a population of counter-electrodes comprising a counter-electrode active material layer, wherein:
members of the population of electrodes are arranged in alternating sequence with members of the population of counter-electrodes, the alternating sequence being along a first direction,
each member of the population of electrodes has a bottom, a top, a length LE, a width WE, a height HE, and a longitudinal axis AE extending (A) from the bottom to the top of each such member and (B) in a direction transverse to the first direction, the length LE of each member of the population of electrodes being measured in the direction of its longitudinal axis AE, the width WE of each member of the population of electrodes being measured in the first direction, and the height HEof each member of the population of electrodes being measured in a direction perpendicular to (a) the longitudinal axis AE of each such member of the population of electrodes and (b) the first direction, a ratio of LE to each of WE and HE of each member of the population of electrodes being at least 5:1, respectively, the ratio of HE to WE for each member of the electrode population of electrodes being between 0.4:1 and 1000:1, respectively,
the longitudinal axis AE of each member of the population of electrodes being surrounded by an electrically insulating separator layer, the electrically insulating separator layer comprising:
(i) a first insulating material disposed in regions between opposing lateral surfaces of adjacent members of an electrode of the population of electrodes and of a counter-electrode of the population of counter-electrodes, and
(ii) a second insulating material along one or more of front and back surfaces of the members of the population of electrodes, the front and back surfaces of the members of the population of electrodes being separated in a direction perpendicular to (I) the longitudinal axis AE of each member of the population of electrodes and (II) to the first direction, and
the second insulating material comprising a lower conductivity for carrier ions than the first insulating material.