公开(公告)号：US20240429466A1

公开(公告)日：2024-12-26

申请号：US18824314

申请日：2024-09-04

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki OTA ,  Chad Alan HARTZOG ,  Xiaoming LIU ,  Michelle Robyn BROUWER ,  Anthony D'ANGELO ,  Daniel SALAZAR ,  Timothy Allen HANS ,  Junhua SONG

IPC: H01M10/42 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0562 ,  H01M10/44 ,  H01M10/48 ,  H01M50/403 ,  H01M50/431 ,  H01M50/449 ,  H02J7/00

Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.

公开(公告)号：US20240413407A1

公开(公告)日：2024-12-12

申请号：US18810183

申请日：2024-08-20

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki OTA ,  Chad Alan HARTZOG ,  Xiaoming LIU ,  Michelle Robyn BROUWER ,  Anthony D'ANGELO ,  Daniel SALAZAR ,  Timothy Allen HANS ,  Junhua SONG

IPC: H01M10/42 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0562 ,  H01M10/44 ,  H01M10/48 ,  H01M50/403 ,  H01M50/431 ,  H01M50/449 ,  H02J7/00

Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.

公开(公告)号：US20240347799A1

公开(公告)日：2024-10-17

申请号：US18526405

申请日：2023-12-01

Applicant: 24M Technologies, Inc.

Inventor： Yet-Ming CHIANG ,  William Henry Woodford ,  Hiuling Zoe Yu

IPC: H01M10/54 ,  H01M6/52

CPC classification number: H01M10/54 ,  H01M6/52 ,  Y02W30/84

Abstract: Embodiments described herein relate generally to methods for the remediation of electrochemical cell electrodes. In some embodiments, a method includes obtaining an electrode material. At least a portion of the electrode material is rinsed to remove a residue therefrom. The electrode material is separated into constituents for reuse.

公开(公告)号：US12095025B2

公开(公告)日：2024-09-17

申请号：US17840816

申请日：2022-06-15

Applicant: 24M Technologies, Inc.

Inventor： Taison Tan ,  Yet-Ming Chiang ,  Naoki Ota ,  Throop Wilder ,  Mihai Duduta

IPC: H01M10/0525 ,  H01M4/02 ,  H01M4/13 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M10/0525 ,  H01M4/13 ,  H01M4/134 ,  H01M4/362 ,  H01M4/386 ,  H01M4/387 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/023 ,  H01M4/38 ,  H01M4/483 ,  H01M4/587 ,  Y02E60/10 ,  Y02P70/50

Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode. An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially defines a negative electroactive zone. The second distance is less than the first distance. A semi-solid cathode that includes a suspension of an active material and a conductive material in a non-aqueous liquid electrolyte is disposed in the positive electroactive zone, and an anode is disposed in the negative electroactive zone.

公开(公告)号：US20240291050A1

公开(公告)日：2024-08-29

申请号：US18650789

申请日：2024-04-30

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki OTA ,  Chad Alan HARTZOG ,  Xiaoming LIU ,  Michelle Robyn BROUWER ,  Anthony D'ANGELO ,  Daniel SALAZAR ,  Timothy Allen HANS ,  Junhua SONG

IPC: H01M10/42 ,  H01M10/0562 ,  H01M10/44 ,  H01M10/48 ,  H01M50/431 ,  H01M50/449 ,  H02J7/00

CPC classification number: H01M10/4235 ,  H01M10/0562 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H01M50/431 ,  H01M50/449 ,  H02J7/0047 ,  H01M2010/4271 ,  H01M2200/00 ,  H01M2300/0068

Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.

公开(公告)号：US12068486B2

公开(公告)日：2024-08-20

申请号：US17339326

申请日：2021-06-04

Applicant: 24M Technologies, Inc.

Inventor： Ryan Michael Lawrence ,  Naoki Ota

IPC: H01M4/70 ,  H01M50/583

CPC classification number: H01M4/70 ,  H01M50/583

Abstract: Embodiments described herein relate to electrochemical cells with one or more current collectors divided into segments, and methods of producing the same. A current collector divided into segments comprises a substantially planar conductive material including a connection region and an electrode region. The electrode region includes one or more dividers defining a plurality of electron flow paths. The plurality of electron flow paths direct the flow of electrons from the electrode region to the connection region. In some embodiments, the current collector includes a fuse section disposed between the electrode region and the connection region. In some embodiments, the fuse section can include a thin strip of conductive material, such that the thin strip of conductive material melts at a melting temperature and substantially prevent electron movement between the electrode region and the connection region.

公开(公告)号：US20240204264A1

公开(公告)日：2024-06-20

申请号：US18543959

申请日：2023-12-18

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki Ota ,  Chad Alan Hartzog ,  Xiaoming Liu ,  Michelle Robyn Brouwer ,  Anthony D'Angelo ,  Daniel Salazar ,  Timothy Allen Hans ,  Junhua Song

IPC: H01M10/42 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0562 ,  H01M50/403 ,  H01M50/449

CPC classification number: H01M10/4235 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0562 ,  H01M50/403 ,  H01M50/449

Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.

公开(公告)号：US20240063417A1

公开(公告)日：2024-02-22

申请号：US18374986

申请日：2023-09-29

Applicant: 24M Technologies, Inc.

Inventor： Yet-Ming CHIANG ,  Mihai DUDUTA ,  Richard K. HOLMAN ,  Pimpa LIMTHONGKUL ,  Taison TAN

IPC: H01M8/18 ,  H01M8/20 ,  H01M4/38 ,  H01M4/62 ,  H01M10/36

CPC classification number: H01M8/188 ,  H01M8/20 ,  H01M4/382 ,  H01M4/62 ,  H01M10/36

Abstract: Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 μm to about 2,000 μm, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.

公开(公告)号：US20240055702A1

公开(公告)日：2024-02-15

申请号：US18381409

申请日：2023-10-18

Applicant: 24M Technologies, Inc. ,  Kyocera Corporation

Inventor： Naoki OTA ,  Takaaki FUKUSHIMA ,  Ricardo BAZZARELLA ,  Taison TAN

IPC: H01M50/103 ,  H01M10/04 ,  H01M10/0585 ,  H01M50/528 ,  H01M50/105 ,  H01M10/0525

CPC classification number: H01M50/103 ,  H01M10/0413 ,  H01M10/049 ,  H01M10/0585 ,  H01M50/528 ,  H01M50/105 ,  H01M10/0525 ,  H01M10/0587

Abstract: Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.

公开(公告)号：US20240047832A1

公开(公告)日：2024-02-08

申请号：US18228921

申请日：2023-08-01

Applicant: 24M Technologies, Inc.

Inventor： Chad Alan HARTZOG ,  Mark YOUNG ,  Kenneth Douglas COBB ,  Junzheng CHEN

IPC: H01M50/503 ,  H01M50/51 ,  H01M50/209 ,  H01M50/264

CPC classification number: H01M50/503 ,  H01M50/51 ,  H01M50/209 ,  H01M50/264

Abstract: Embodiments described herein relate to electrochemical cells and multicells. A multicell can include a cell packaging that includes two or more electrochemical cells connected in series internal to the cell packaging. In some aspects, an apparatus includes a plurality of electrochemical cell stacks each including a plurality of electrochemical cells connected in series, a first electrically conductive plate including a first section and a second section, and a second electrically conductive plate. The first section of the first electrically conductive plate is in contact with a first terminal end of a first electrochemical cell stack from the plurality of electrochemical cell stacks. The second section of the first electrically conductive plate is in contact with a first terminal end of a second electrochemical cell stack from the plurality of electrochemical cell stacks.