IP Library › Granted Patent US 12,555,867
Granted Patent B2
US 12,555,867 · App. 18/077,821 · Granted Feb 17, 2026

Systems and methods for improving safety features in electrochemical cells

Inventors: Richard Holman (Wellesley, MA); Ricardo Bazzarella (Woburn, MA); Takaaki Fukushima (Okayama, JP); Matt Tyler (Boston, MA); Naoki Ota (Lexington, MA)
Assignees: 24M Technologies, Inc.; Kyocera Corporation
H01M50/342H01M10/0525H01M10/52H01M50/178H01M50/55H01M50/557
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Quick Facts
Patent No.
US 12,555,867
App. No.
18/077,821
Granted
Feb 17, 2026
Kind
B2
Abstract

Embodiments described herein relate generally to systems and methods for improving safety features in electrochemical cells. In particular, the systems and methods as described herein can solve safety issues concerning gas generation in electrochemical cells.

Claims (24)

1 . An apparatus, comprising:

a casing for an electrochemical cell, the casing including a first portion having a first sealing region, and a second portion having a second sealing region, the first sealing region and the second sealing region coupled to form a sealing perimeter of the casing,

the first portion of the casing configured to partially define a first cavity configured to receive a cathode, and the second portion of the casing configured to partially define a second cavity configured to receive an anode;

a separator disposed between the cathode and the anode and forming a part of the first sealing region and the second sealing region, a portion of the separator extending through and beyond the sealing perimeter to form a fluid flow path from at least one of the first cavity and the second cavity to a region outside of the casing;

a vent defined in the first portion of the casing, the vent configured to transition between a first configuration in which the vent opens in response to a pressure in the casing reaching or exceeding a threshold pressure, and a second configuration in which the vent closes in response to the pressure in the casing dropping below the threshold pressure; and

a supporting structure operably coupled to the vent and the first portion of the casing, the supporting structure configured to structurally support the vent in the first configuration.

2 . The apparatus of claim 1 , wherein the threshold gas pressure is between about 5 psi and about 2,000 psi.

3 . The apparatus of claim 1 , wherein the separator includes a multilayer structure, the multilayer structure including a first layer and a porous layer disposed on the first layer, the porous layer forming the fluid flow path.

4 . The apparatus of claim 3 , wherein the porous layer includes at least one of particles or fibers.

5 . The apparatus of claim 4 , wherein the particles or fibers include a ceramic material including at least one of Al 2 O 3 , TiO 2 , ZrO 2 , AlO(OH), or AlF 3 .

6 . The apparatus of claim 4 , wherein the particles include a polymer material including at least one of polyimide (PI), polyamide-imide (PAI), polyether ether ketone (PEEK), polyethersulfone (PES), polyphenylene sulfide (PPS), or phenol polymer.

7 . The apparatus of claim 4 , wherein the particles have a particle size in a range of about 1 μm to about 200 μm.

8 . The apparatus of claim 3 , wherein the porous layer has a thickness in a range of about 1 μm to about 200 μm.

9 . The apparatus of claim 3 , wherein the first layer includes at least one of polyethylene, ultra-high molecular weight polyethylene, polypropylene, polybutene, polymethylpentene, or polyisoprene.

10 . The apparatus of claim 1 , wherein in the first configuration, the vent is configured to allow gas generated within the casing to be communicated to the region outside of the casing via the vent.

11 . The apparatus of claim 10 , wherein in the second configuration, the vent is sealed to inhibit gas transfer between the first cavity and the region outside of the casing via the vent.

12 . The apparatus of claim 1 , wherein the casing is formed of a first material, and the vent is formed of a second material different from the first material.

13 . The apparatus of claim 12 , wherein the supporting structure is formed of a third material different from at least one of the first material or the second material.

14 . The apparatus of claim 13 , wherein the supporting structure has a cross shape.

15 . The apparatus of claim 1 , wherein the sealing perimeter is located axially inwards from an outer periphery of the casing.

16 . The apparatus of claim 15 , wherein the portion of the separator extending through and beyond the sealing perimeter has a length that is about 1% to about 25% of a total length of the separator.

17 . The apparatus of claim 15 , wherein the portion of the separator extending through and beyond the sealing perimeter has a length in a range of about 100 μm to about 5 mm.

18 . The apparatus of claim 15 , wherein the separator includes a non-porous region, and a porous region surrounding the non-porous region, the porous region of the separator extending through and beyond the sealing perimeter to form the fluid flow path.

19 . The apparatus of claim 18 , wherein the porous portion of the separator has a porosity in a range of about 1% to about 90%.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2023
From: HOLMAN, RICHARD; BAZZARELLA, RICARDO; TYLER, MATT; OTA, NAOKI
To: 24M TECHNOLOGIES, INC.
Reel/Frame 062937/0534 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2023
From: FUKUSHIMA, TAKAAKI
To: KYOCERA CORPORATION
Reel/Frame 062937/0590 →
Continuity (3)
Continuation 15886281 · Feb 1, 2018
Provisional Application 62453197 · Feb 1, 2017
Related Publication 20230291063A1 · Sep 14, 2023
References Cited (272)
US 3023259A · Coler et al. · 1962 [cited by applicant]
US 3148322A · Booe et al. · 1964 [cited by applicant]
US 3715697A · Them · 1973 [cited by applicant]
US 3918995A · Palmer et al. · 1975 [cited by applicant]
US 4992339A · Georgopoulos · 1991 [cited by applicant]
US 5776627A · Mao et al. · 1998 [cited by applicant]
US 5879832A · Vu et al. · 1999 [cited by applicant]
US 5998051A · Poirier et al. · 1999 [cited by applicant]
US 6168880B1 · Snyder et al. · 2001 [cited by applicant]
US 6204635B1 · Sullivan · 2001 [cited by applicant]
US 6544679B1 · Petillo et al. · 2003 [cited by applicant]
US 6562517B1 · Misra et al. · 2003 [cited by applicant]
US 6623883B1 · Kise et al. · 2003 [cited by applicant]
US 6843388B1 · Hollars · 2005 [cited by applicant]
US 7385474B2 · Kawanishi · 2008 [cited by applicant]
US 7952330B2 · Mori · 2011 [cited by applicant]
US 8722226B2 · Chiang et al. · 2014 [cited by applicant]
US 8722227B2 · Chiang et al. · 2014 [cited by applicant]
US 8749341B2 · Takeda · 2014 [cited by applicant]
US 8778552B2 · Chiang et al. · 2014 [cited by applicant]
US 8993159B2 · Chiang et al. · 2015 [cited by applicant]
US 9153833B2 · Chiang et al. · 2015 [cited by applicant]
US 9178200B2 · Bazzarella et al. · 2015 [cited by applicant]
US 9184464B2 · Chiang et al. · 2015 [cited by applicant]
US 9203092B2 · Slocum et al. · 2015 [cited by applicant]
US 9293781B2 · Chiang et al. · 2016 [cited by applicant]
US 9362583B2 · Chiang et al. · 2016 [cited by applicant]
US 9385392B2 · Chiang et al. · 2016 [cited by applicant]
US 9401501B2 · Bazzarella et al. · 2016 [cited by applicant]
US 9437864B2 · Tan et al. · 2016 [cited by applicant]
US 9484569B2 · Doherty et al. · 2016 [cited by applicant]
US 9583780B2 · Chiang et al. · 2017 [cited by applicant]
US 9614231B2 · Carter et al. · 2017 [cited by applicant]
US 9786944B2 · Chiang et al. · 2017 [cited by applicant]
US 9812674B2 · Bazzarella et al. · 2017 [cited by applicant]
US 9825280B2 · Chiang et al. · 2017 [cited by applicant]
US 9831518B2 · Chiang et al. · 2017 [cited by applicant]
US 9831519B2 · Chiang et al. · 2017 [cited by applicant]
US 9831522B2 · Tan et al. · 2017 [cited by applicant]
US 10115970B2 · Ota et al. · 2018 [cited by applicant]
US 10122044B2 · Tan et al. · 2018 [cited by applicant]
US 10153651B2 · Taylor et al. · 2018 [cited by applicant]
US 10181587B2 · Ota et al. · 2019 [cited by applicant]
US 10230128B2 · Chiang et al. · 2019 [cited by applicant]
US 10236518B2 · Chiang et al. · 2019 [cited by applicant]
US 10236537B2 · Hamaguchi et al. · 2019 [cited by applicant]
US 10411310B2 · Chiang et al. · 2019 [cited by applicant]
US 10483582B2 · Chiang et al. · 2019 [cited by applicant]
US 10497935B2 · Ota et al. · 2019 [cited by applicant]
US 10522870B2 · Tan et al. · 2019 [cited by applicant]
US 10566581B2 · Bazzarella et al. · 2020 [cited by applicant]
US 10566603B2 · Slocum et al. · 2020 [cited by applicant]
US 10593952B2 · Ota et al. · 2020 [cited by applicant]
US 10601239B2 · Taylor et al. · 2020 [cited by applicant]
US 10637038B2 · Zagars et al. · 2020 [cited by applicant]
US 10665836B2 · Cho et al. · 2020 [cited by applicant]
US 10734672B2 · Chen et al. · 2020 [cited by applicant]
US 10777852B2 · Woodford et al. · 2020 [cited by applicant]
US 10854869B2 · Bazzarella et al. · 2020 [cited by applicant]
US 10886521B2 · Zagars et al. · 2021 [cited by applicant]
US 10910858B2 · Taylor et al. · 2021 [cited by applicant]
US 10957940B2 · Tan et al. · 2021 [cited by applicant]
US 10964973B2 · Tan et al. · 2021 [cited by applicant]
US 11005087B2 · Ota et al. · 2021 [cited by applicant]
US 11018365B2 · Chiang et al. · 2021 [cited by applicant]
US 11024903B2 · Ota et al. · 2021 [cited by applicant]
US 11094487B2 · Lawrence et al. · 2021 [cited by applicant]
US 11094976B2 · Chiang et al. · 2021 [cited by applicant]
US 11121437B2 · Bazzarella et al. · 2021 [cited by applicant]
US 11139467B2 · Zagars et al. · 2021 [cited by applicant]
US 11145909B2 · Chiang et al. · 2021 [cited by applicant]
US 11309531B2 · Slocum et al. · 2022 [cited by applicant]
US 11342567B2 · Chiang et al. · 2022 [cited by applicant]
US 11394049B2 · Tan et al. · 2022 [cited by applicant]
US 11476551B2 · Tyler et al. · 2022 [cited by applicant]
US 11552368B2 · Holman et al. · 2023 [cited by applicant]
US 11575146B2 · Taylor et al. · 2023 [cited by applicant]
US 11594793B2 · Bazzarella et al. · 2023 [cited by applicant]
US 11611061B2 · Zagars et al. · 2023 [cited by applicant]
US 11749804B2 · Chen et al. · 2023 [cited by applicant]
US 11757129B2 · Tan et al. · 2023 [cited by applicant]
US 20010038938A1 · Takahashi et al. · 2001 [cited by applicant]
US 20030124428A1 · Sato · 2003 [cited by examiner]
US 20040028995A1 · Shelekhin · 2004 [cited by examiner]
US 20040081890A1 · Xing et al. · 2004 [cited by applicant]
US 20060068293A1 · Kim et al. · 2006 [cited by applicant]
US 20080254355A1 · Muraoka et al. · 2008 [cited by applicant]
US 20080292968A1 · Lee · 2008 [cited by examiner]
US 20090286139A1 · Awano · 2009 [cited by applicant]
US 20090315666A1 · Ueda et al. · 2009 [cited by applicant]
US 20100021821A1 · Kim et al. · 2010 [cited by applicant]
US 20100047671A1 · Chiang et al. · 2010 [cited by applicant]
US 20100255351A1 · Ijaz et al. · 2010 [cited by applicant]
US 20100323264A1 · Chiang et al. · 2010 [cited by applicant]
US 20110189520A1 · Carter et al. · 2011 [cited by applicant]
US 20110200848A1 · Chiang et al. · 2011 [cited by applicant]
US 20110274948A1 · Duduta et al. · 2011 [cited by applicant]
US 20120121936A1 · Baek et al. · 2012 [cited by applicant]
US 20120164499A1 · Chiang et al. · 2012 [cited by applicant]
US 20130055559A1 · Slocum et al. · 2013 [cited by applicant]
US 20130065122A1 · Chiang et al. · 2013 [cited by applicant]
US 20130309547A1 · Bazzarella · 2013 [cited by examiner]
US 20130337319A1 · Doherty et al. · 2013 [cited by applicant]
US 20130344367A1 · Chiang et al. · 2013 [cited by applicant]
US 20140004437A1 · Slocum et al. · 2014 [cited by applicant]
US 20140011060A1 · Yang et al. · 2014 [cited by applicant]
US 20140030623A1 · Chiang et al. · 2014 [cited by applicant]
US 20140039710A1 · Carter et al. · 2014 [cited by applicant]
US 20140154546A1 · Carter et al. · 2014 [cited by applicant]
US 20140170450A1 · Takahashi et al. · 2014 [cited by applicant]
US 20140170524A1 · Chiang et al. · 2014 [cited by applicant]
US 20140248521A1 · Chiang et al. · 2014 [cited by applicant]
US 20140315097A1 · Tan et al. · 2014 [cited by applicant]
US 20150024279A1 · Tan et al. · 2015 [cited by applicant]
US 20150064517A1 · Han et al. · 2015 [cited by applicant]
US 20150129081A1 · Chiang et al. · 2015 [cited by applicant]
US 20150140371A1 · Slocum · 2015 [cited by applicant]
US 20150140410A1 · Kim et al. · 2015 [cited by applicant]
US 20150171406A1 · Bazzarella et al. · 2015 [cited by applicant]
US 20150180033A1 · Oyama et al. · 2015 [cited by applicant]
US 20150280185A1 · Lampe-Onnerud et al. · 2015 [cited by applicant]
US 20150280202A1 · Lee et al. · 2015 [cited by applicant]
US 20150280267A1 · Chiang et al. · 2015 [cited by applicant]
US 20150295272A1 · Chiang et al. · 2015 [cited by applicant]
US 20150357626A1 · Holman et al. · 2015 [cited by applicant]
US 20160013507A1 · Chiang et al. · 2016 [cited by applicant]
US 20160020042A1 · Stanton et al. · 2016 [cited by applicant]
US 20160056490A1 · Chiang et al. · 2016 [cited by applicant]
US 20160056491A1 · Chiang et al. · 2016 [cited by applicant]
US 20160105042A1 · Taylor et al. · 2016 [cited by applicant]
US 20160126543A1 · Ota et al. · 2016 [cited by applicant]
US 20160133916A1 · Zagars et al. · 2016 [cited by applicant]
US 20160141593A1 · Min et al. · 2016 [cited by applicant]
US 20160190544A1 · Slocum et al. · 2016 [cited by applicant]
US 20160211502A1 · Choi et al. · 2016 [cited by applicant]
US 20160218375A1 · Chiang et al. · 2016 [cited by applicant]
US 20160240896A1 · Zhang et al. · 2016 [cited by applicant]
US 20160268621A1 · Chiang et al. · 2016 [cited by applicant]
US 20160308218A1 · Ota et al. · 2016 [cited by applicant]
US 20160315301A1 · Kim et al. · 2016 [cited by applicant]
US 20160344006A1 · Ota et al. · 2016 [cited by applicant]
US 20160372802A1 · Chiang et al. · 2016 [cited by applicant]
US 20170018798A1 · Tan et al. · 2017 [cited by applicant]
US 20170025646A1 · Ota et al. · 2017 [cited by applicant]
US 20170025674A1 · Tan et al. · 2017 [cited by applicant]
US 20170033389A1 · Chiang et al. · 2017 [cited by applicant]
US 20170033390A1 · Chiang et al. · 2017 [cited by applicant]
US 20170077464A1 · Bazzarella et al. · 2017 [cited by applicant]
US 20170162863A1 · Doherty et al. · 2017 [cited by applicant]
US 20170214034A1 · Ota et al. · 2017 [cited by applicant]
US 20170237111A1 · Holman et al. · 2017 [cited by applicant]
US 20170237112A1 · Holman et al. · 2017 [cited by applicant]
US 20170279108A1 · Herle · 2017 [cited by applicant]
US 20170288281A1 · Chiang et al. · 2017 [cited by applicant]
US 20180034090A1 · Chiang et al. · 2018 [cited by applicant]
US 20180102521A1 · Cho et al. · 2018 [cited by applicant]
US 20180175428A1 · Chiang et al. · 2018 [cited by applicant]
US 20180175445A1 · Tan et al. · 2018 [cited by applicant]
US 20180233708A1 · Bazzarella et al. · 2018 [cited by applicant]
US 20180287220A1 · Woodford et al. · 2018 [cited by applicant]
US 20190036101A1 · Tyler et al. · 2019 [cited by applicant]
US 20190058184A1 · Bazzarella et al. · 2019 [cited by applicant]
US 20190198882A1 · Jeong · 2019 [cited by applicant]
US 20190245242A1 · Tan et al. · 2019 [cited by applicant]
US 20190319460A1 · Taylor et al. · 2019 [cited by applicant]
US 20190326562A1 · Ota et al. · 2019 [cited by applicant]
US 20190348705A1 · Chen et al. · 2019 [cited by applicant]
US 20190355998A1 · Chiang et al. · 2019 [cited by applicant]
US 20190363351A1 · Ota et al. · 2019 [cited by applicant]
US 20190393477A1 · Lawrence et al. · 2019 [cited by applicant]
US 20200014025A1 · Zagars et al. · 2020 [cited by applicant]
US 20200044296A1 · Chiang et al. · 2020 [cited by applicant]
US 20200106094A1 · Ota et al. · 2020 [cited by applicant]
US 20200161688A1 · Chiang et al. · 2020 [cited by applicant]
US 20200220118A1 · Bazzarella et al. · 2020 [cited by applicant]
US 20200220204A1 · Tan et al. · 2020 [cited by applicant]
US 20200259338A1 · Taylor et al. · 2020 [cited by applicant]
US 20200321597A1 · Zagars et al. · 2020 [cited by applicant]
US 20200321601A1 · Slocum et al. · 2020 [cited by applicant]
US 20200358129A1 · Chen et al. · 2020 [cited by applicant]
US 20200411825A1 · Bazzarella et al. · 2020 [cited by applicant]
US 20210091366A1 · Bazzarella et al. · 2021 [cited by applicant]
US 20210167351A1 · Zagars et al. · 2021 [cited by applicant]
US 20210226192A1 · Aranami et al. · 2021 [cited by applicant]
US 20210249678A1 · Chiang et al. · 2021 [cited by applicant]
US 20210249695A1 · Aranami et al. · 2021 [cited by applicant]
US 20210265631A1 · Chen et al. · 2021 [cited by applicant]
US 20210359527A1 · Taylor et al. · 2021 [cited by applicant]
US 20210376380A1 · Tan et al. · 2021 [cited by applicant]
US 20210384516A1 · Lawrence et al. · 2021 [cited by applicant]
US 20220021019A1 · Tan et al. · 2022 [cited by applicant]
US 20220029207A1 · Chiang et al. · 2022 [cited by applicant]
US 20220093929A1 · Chen et al. · 2022 [cited by applicant]
US 20220115710A1 · Zagars et al. · 2022 [cited by applicant]
US 20220172916A1 · Lawrence et al. · 2022 [cited by applicant]
US 20220173446A1 · Chiang et al. · 2022 [cited by applicant]
US 20220200306A1 · Kusachi et al. · 2022 [cited by applicant]
US 20220344775A1 · Carlson et al. · 2022 [cited by applicant]
US 20230018078A1 · Slocum et al. · 2023 [cited by applicant]
US 20230022329A1 · Chen et al. · 2023 [cited by applicant]
US 20230170169A1 · Lawrence et al. · 2023 [cited by applicant]
US 20230178707A1 · Aranami et al. · 2023 [cited by applicant]
US 20230238562A1 · Kusachi et al. · 2023 [cited by applicant]
CN 1268254A · 2000 [cited by applicant]
CN 1571882A · 2005 [cited by applicant]
CN 1598994A · 2005 [cited by applicant]
CN 101103509A · 2008 [cited by applicant]
CN 101595546A · 2009 [cited by applicant]
CN 101617419A · 2009 [cited by applicant]
CN 102460771A · 2012 [cited by applicant]
CN 102483046A · 2012 [cited by applicant]
CN 102800525A · 2012 [cited by applicant]
CN 106953059A · 2017 [cited by applicant]
EP 3279974A1 · 2018 [cited by applicant]
EP 3279982A1 · 2018 [cited by applicant]
JP H05151993A · 1993 [cited by applicant]
JP H10241660A · 1998 [cited by applicant]
JP 2005149794A · 2005 [cited by applicant]
JP 2010044896A · 2010 [cited by applicant]
JP 2010277756A · 2010 [cited by applicant]
JP 4658467B2 · 2011 [cited by applicant]
JP 2013073720A · 2013 [cited by applicant]
JP 2013101825A · 2013 [cited by applicant]
JP 2017168302A · 2017 [cited by applicant]
KR 100778977B1 · 2007 [cited by applicant]
KR 20130064465A · 2013 [cited by applicant]
KR 20140012264A · 2014 [cited by applicant]
TW 533641B · 2003 [cited by applicant]
WO WO2013132228A1 · 2013 [cited by applicant]
WO WO2016049213A1 · 2016 [cited by applicant]
WO WO2016132119A1 · 2016 [cited by applicant]
WO WO2016178540A1 · 2016 [cited by applicant]
WO WO2016205663A1 · 2016 [cited by applicant]
WO WO2019136467A1 · 2019 [cited by applicant]
WO WO2021248012A1 · 2021 [cited by applicant]
Co-pending U.S. Appl. No. 18/227,816, inventors Tan; Taison et al., filed Jul. 28, 2023. [cited by applicant]
Co-pending U.S. Appl. No. 18/372,308, inventors Ota; Naoki et al., filed Sep. 25, 2023. [cited by applicant]
Co-pending U.S. Appl. No. 18/374,986, inventors Chiang; Yet-Ming et al., filed Sep. 29, 2023. [cited by applicant]
Co-pending U.S. Appl. No. 18/381,409, inventors Ota; Naoki et al., filed Oct. 18, 2023. [cited by applicant]
Co-pending U.S. Appl. No. 18/510,473, inventor Taylor; Tony L., filed Nov. 15, 2023. [cited by applicant]
Co-pending U.S. Appl. No. 18/526,405, inventor Chiang; Yet-Ming , filed Dec. 1, 2023. [cited by applicant]
Final Office Action for U.S. Appl. No. 17/339,326 dated Dec. 5, 2023, 21 pages. [cited by applicant]
International Preliminary Report on Patentability for International Application No. PCT/US2020/049691, mailed Mar. 8, 2022, 7 pages. [cited by applicant]
International Preliminary Report on Patentability for International Application No. PCT/US2021/035922 mailed on Dec. 15, 2022, 8 pages. [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2020/049691, mailed Dec. 15, 2020, 9 pages. [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2021/035922 dated Sep. 20, 2021, 10 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 17/944,602 dated Oct. 13, 2023, 14 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 18/161,787 dated Nov. 14, 2023, 13 pages. [cited by applicant]
Notice of Allowance for U.S. Appl. No. 17/078,814, mailed Oct. 31, 2022, 9 pages. [cited by applicant]
Restriction Requirement for U.S. Appl. No. 17/339,326, mailed Jan. 27, 2023, 6 pages. [cited by applicant]
Cannarella, J. et al., “Stress evolution and capacity fade in constrained lithium-ion pouch cells,” Journal of Power Sources, vol. 245, Jul. 2013, pp. 745-751. [cited by applicant]
Extended European Search Report for European Application No. 18748587.5, mailed Feb. 8, 2021, 13 pages. [cited by applicant]
Final Office Action for U.S. Appl. No. 15/886,281, mailed on Dec. 30, 2021, 20 Pages. [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2018/016406, mailed May 18, 2018, 11 pages. [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2018/025375, mailed Jun. 27, 2018, 7 pages. [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2018/044378, mailed Oct. 15, 2018, 8 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 15/886,281, mailed on Jun. 3, 2021, 26 pages. [cited by applicant]
Notice of Allowance for U.S. Appl. No. 16/048,765, mailed Jun. 15, 2022, 7 pages. [cited by applicant]
Notice of Allowance for U.S. Appl. No. 15/886,281, mailed Sep. 12, 2022, 8 pages. [cited by applicant]
Office Action for U.S. Appl. No. 17/078,814, mailed May 13, 2022, 20 pages. [cited by applicant]
Office Action for Chinese Application No. 201880061848.1, mailed Aug. 3, 2021, 23 pages. [cited by applicant]
Office Action for U.S. Appl. No. 15/886,281, mailed Aug. 10, 2020, 26 pages. [cited by applicant]
Office Action for U.S. Appl. No. 15/886,281, mailed Dec. 16, 2019, 15 pages. [cited by applicant]
Office Action for U.S. Appl. No. 15/941,673, mailed Dec. 10, 2019, 7 pages. [cited by applicant]
Office Action for U.S. Appl. No. 16/048,765, mailed Dec. 11, 2020, 6 pages. [cited by applicant]
Office Action for U.S. Appl. No. 16/104,480, mailed Apr. 17, 2020, 10 pages. [cited by applicant]
Office Action mailed Sep. 26, 2021 for Chinese Application No. 201880018682.5, 7 pages. [cited by applicant]
Partial Supplementary European Search Report for European Application No. 18748587.5, mailed Nov. 6, 2020, 11 pages. [cited by applicant]
Rejection Decision for Chinese Application No. 20188018682 dated May 24, 2023, 13 pages. [cited by applicant]
Office Action for U.S. Appl. No. 17/339,326 mailed Jun. 8, 2023, 13 pages. [cited by applicant]
Castro et al., “New Polyurethane/Docosane Microcapsules as Phase-Change Materials for Thermal Energy Storage,” Chemistry—A European Journal, Jul. 2015, 21(31), pp. 11174-11179. [cited by applicant]
Jin et al., “Facile and Effective Positive Temperature Coefficient (PTC) Layer for Safer Lithium-Ion Batteries,” The Journal of Physical Chemistry C., Jan. 2021, 125 (3), pp. 1761-1766. [cited by applicant]