公开(公告)号：US20240347799A1

公开(公告)日：2024-10-17

申请号：US18526405

申请日：2023-12-01

申请人： 24M Technologies, Inc.

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

IPC分类号： H01M10/54 ,  H01M6/52

CPC分类号： H01M10/54 ,  H01M6/52 ,  Y02W30/84

摘要： 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

申请人： 24M Technologies, Inc.

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

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

CPC分类号： 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

摘要： 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

申请人： 24M Technologies, Inc.

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

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

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

摘要： 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

申请人： 24M Technologies, Inc.

发明人： Ryan Michael Lawrence ,  Naoki Ota

IPC分类号： H01M4/70 ,  H01M50/583

CPC分类号： H01M4/70 ,  H01M50/583

摘要： 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

申请人： 24M Technologies, Inc.

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

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

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

摘要： 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

申请人： 24M Technologies, Inc.

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

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

CPC分类号： H01M8/188 ,  H01M8/20 ,  H01M4/382 ,  H01M4/62 ,  H01M10/36

摘要： 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

申请人： 24M Technologies, Inc. ,  Kyocera Corporation

发明人： Naoki OTA ,  Takaaki FUKUSHIMA ,  Ricardo BAZZARELLA ,  Taison TAN

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

CPC分类号： H01M50/103 ,  H01M10/0413 ,  H01M10/049 ,  H01M10/0585 ,  H01M50/528 ,  H01M50/105 ,  H01M10/0525 ,  H01M10/0587

摘要： 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

申请人： 24M Technologies, Inc.

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

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

CPC分类号： H01M50/503 ,  H01M50/51 ,  H01M50/209 ,  H01M50/264

摘要： 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.

公开(公告)号：US20230378512A1

公开(公告)日：2023-11-23

申请号：US18127439

申请日：2023-03-28

申请人： 24M Technologies, Inc.

发明人： Ricardo BAZZARELLA ,  Alexander H. SLOCUM ,  Tristan DOHERTY ,  James C. CROSS, III

IPC分类号： H01M10/04 ,  H01M50/124 ,  H01M50/545 ,  H01M50/105 ,  H01M10/0525

CPC分类号： H01M10/0404 ,  H01M10/0413 ,  H01M10/0436 ,  H01M50/124 ,  H01M50/545 ,  H01M50/105 ,  H01M10/0525 ,  H01M50/553

摘要： Electrochemical cells and methods of making electrochemical cells are described herein. In some embodiments, an apparatus includes a multi-layer sheet for encasing an electrode material for an electrochemical cell. The multi-layer sheet including an outer layer, an intermediate layer that includes a conductive substrate, and an inner layer disposed on a portion of the conductive substrate. The intermediate layer is disposed between the outer layer and the inner layer. The inner layer defines an opening through which a conductive region of the intermediate layer is exposed such that the electrode material can be electrically connected to the conductive region. Thus, the intermediate layer can serve as a current collector for the electrochemical cell.

公开(公告)号：US11757129B2

公开(公告)日：2023-09-12

申请号：US17173420

申请日：2021-02-11

申请人： 24M Technologies, Inc.

发明人： Taison Tan ,  Naoki Ota ,  Jeffry Disko

IPC分类号： H01M10/0565 ,  H01M4/64 ,  H01M10/058 ,  H01M4/13 ,  H01M4/62 ,  H01M10/052

CPC分类号： H01M10/0565 ,  H01M4/13 ,  H01M4/62 ,  H01M4/624 ,  H01M4/64 ,  H01M10/052 ,  H01M10/058 ,  H01M2300/0085 ,  Y02E60/10 ,  Y02P70/50 ,  Y10T29/49108

摘要： Embodiments described herein relate generally to electrochemical cells having semi-solid electrodes that include a gel polymer additive such that the electrodes demonstrate longer cycle life while significantly retaining the electronic performance of the electrodes and the electrochemical cells formed therefrom. In some embodiments, a semi-solid electrode can include about 20% to about 75% by volume of an active material, about 0.5% to about 25% by volume of a conductive material, and about 20% to about 70% by volume of an electrolyte. The electrolyte further includes about 0.01% to about 1.5% by weight of a polymer additive. In some embodiments, the electrolyte can include about 0.1% to about 0.7% of the polymer additive.