公开(公告)号：US20250141002A1

公开(公告)日：2025-05-01

申请号：US18928925

申请日：2024-10-28

Applicant: 24M Technologies, Inc.

Inventor： Junhua SONG ,  Junzheng CHEN ,  Frank Yongzhen FAN ,  Dhanya PUTHUSSERI ,  Grace O'DWYER ,  Humberto ROJAS

IPC: H01M50/204 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/054 ,  H01M50/51 ,  H01M50/512

Abstract: An electrochemical cell system includes a first electrochemical cell including a first anode current collector, a first anode, a first cathode current collector, a first cathode, and a first separator. The first cathode has a first composition such that the first electrochemical cell has a first energy density, and a first power density at a predetermined temperature. A second electrochemical cell includes a second anode, a second cathode current collector, a second cathode, and a second separator. The second cathode has a second composition different from the first composition such that the second electrochemical cell has a second energy density that is less than the first energy density, and a second power density at the predetermined temperature that is greater than the first power density. The first electrochemical cell may include a first electrolyte different from a second electrolyte of the second electrochemical cell.

公开(公告)号：US20240429463A1

公开(公告)日：2024-12-26

申请号：US18741165

申请日：2024-06-12

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：US20240304882A1

公开(公告)日：2024-09-12

申请号：US18596235

申请日：2024-03-05

Applicant: 24M Technologies, Inc. ,  National Science and Technology Development Agency ,  Global Power Synergy Public Company Limited

Inventor： Nattanai KUNANUSONT ,  Pimpa LIMTHONGKUL ,  Junzheng CHEN ,  Phontip TAMMAWAT ,  Thanathon SESUK ,  Sunisa BUAKEAW ,  Priew EIAMLAMAI

IPC: H01M10/54 ,  C01D15/02 ,  H01M4/485

CPC classification number: H01M10/54 ,  C01D15/02 ,  H01M4/485 ,  C01P2006/40

Abstract: Embodiments described herein relate to regeneration of lithium-deficient electrodes (e.g., lithium iron phosphate, LFP). The process includes multiple steps of heat treatment. The first step includes mixing spent electrode material with lithium carbonate. The lithium carbonate and the spent LFP are then subject to a heating process in an all-nitrogen environment. The first heat treatment brings the materials up to about 550° C. to remove excess water and oxygen. The second heat treatment brings the materials up to about 1,000° C., where they are sintered together to form a like-new electrode material.

公开(公告)号：US20240088355A1

公开(公告)日：2024-03-14

申请号：US18233411

申请日：2023-08-14

Applicant: 24M Technologies, Inc

Inventor： Naoki OTA ,  Junzheng CHEN ,  Ricardo BAZZARELLA

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/0404 ,  H01M4/0426 ,  H01M4/386 ,  H01M4/387 ,  H01M2004/021

Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density electrodes including a first electrode material disposed on a current collector and having a first porosity, and a second electrode material disposed on the first electrode material and having a second porosity less than the first porosity. In some embodiments, the second electrode material includes a mixture of an active material and a conductive material in a liquid electrolyte. In some embodiments, the first electrode materials can have a different composition than the second electrode material. In some embodiments, the first electrode material can include a high-capacity material such as tin, silicon antimony, aluminum, or titanium oxide. In some embodiments, a lithium-containing material can be disposed between the first electrode material and the second electrode material.

公开(公告)号：US20230282906A1

公开(公告)日：2023-09-07

申请号：US18118416

申请日：2023-03-07

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki OTA ,  Ryan Michael LAWRENCE ,  Jeffry DISKO ,  Chad Alan HARTZOG

IPC: H01M10/658 ,  H01M50/117 ,  H01M50/119 ,  H01M10/6563 ,  H01M10/48 ,  H01M10/6551 ,  H01M50/128

CPC classification number: H01M10/658 ,  H01M50/117 ,  H01M50/119 ,  H01M10/6563 ,  H01M10/486 ,  H01M10/6551 ,  H01M50/128

Abstract: Embodiments described herein relate to electrochemical cells and electrochemical cell systems with thermal insulation systems, and methods of producing the same. An electrochemical cell can include an anode material disposed on an anode current collector, a cathode material disposed on a cathode current collector, a separator disposed between the anode material and the cathode material, and an insulating structure disposed around and containing the anode material, anode current collector, cathode material, cathode current collector, and the separator. The anode material and/or the cathode material includes a semi-solid electrode material. The semi-solid electrode material includes an active material and a conductive material in a liquid electrolyte. The liquid electrolyte has an electrolyte salt concentration of at least about 2.0 M. In some embodiments, the insulating structure includes a frame with a first wall and a second wall disposed therein.

公开(公告)号：US20230178707A1

公开(公告)日：2023-06-08

申请号：US17895229

申请日：2022-08-25

Applicant: 24M Technologies, Inc. ,  Kyocera Corporation

Inventor： Junji ARANAMI ,  Raymond ZAGARS ,  Naoki OTA ,  Junzheng CHEN ,  Ricardo BAZZARELLA

IPC: H01M4/04

CPC classification number: H01M4/0433

Abstract: Embodiments described herein relate generally to apparatuses and processes for forming semi-solid electrodes having high active solids loading by removing excess electrolyte. In some embodiments, the semi-solid electrode material can be formed by mixing an active material and, optionally, a conductive material in a liquid electrolyte to form a suspension. In some embodiments, the semi-solid electrode material can be disposed onto a current collector to form an intermediate electrode. In some embodiments, the semi-solid electrode material can have a first composition in which the ratio of electrolyte to active material is between about 10:1 and about 1:1. In some embodiments, a method for converting the semi-solid electrode material from the first composition into the second composition includes removing a portion of the electrolyte from the semi-solid electrode material. In some embodiments, the method includes mechanically compressing the intermediate electrode to remove the portion of electrolyte from the semi-solid electrode material.

公开(公告)号：US20220263193A1

公开(公告)日：2022-08-18

申请号：US17729793

申请日：2022-04-26

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki OTA ,  Matt TYLER ,  Nathan COSTA ,  Landon OAKES

IPC: H01M50/414 ,  H01M50/497 ,  H01M50/46

Abstract: Embodiments described herein relate to electrochemical cells having a separator with a separator seal. In some embodiments, an electrochemical cell includes an anode disposed on an anode current collector, a cathode disposed on a cathode collector, a separator disposed between the anode and the cathode, and a separator seal coupled to the separator. The separator seal is impermeable to the movement of electroactive species therethrough. In some embodiments, the separator seal can include a tape and/or an adhesive. In some embodiments, the separator seal can include a material that permeates into pores of a portion of the separator. In some embodiments, the separator seal can be thermally bonded to the separator. In some embodiments, the electrochemical cell can include a pouch. In some embodiments the separator can be coupled to the pouch. In some embodiments, the separator seal can be coupled to the pouch.

公开(公告)号：US20220093929A1

公开(公告)日：2022-03-24

申请号：US17484687

申请日：2021-09-24

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Jeffry DISKO ,  Lauren SIMPSON ,  Naoki OTA

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/04 ,  H01M4/136 ,  H01M4/505

Abstract: Embodiments described herein relate to semi-solid electrodes with carbon additives, and methods of making the same. In some embodiments, a semi-solid electrode, can include about 35% to about 75% by volume of an active material, about 0.5% to about 8% by volume of a conductive material, and about 0.2% to about 5% by volume of a carbon additive. The carbon additive is different from the conductive material. The active material, the conductive material, and the carbon additive are mixed with a non-aqueous electrolyte to form the semi-solid electrode. In some embodiments, the carbon additive includes carbon nanofibers, vapor-grown carbon fibers (VCGF), carbon nanotubes (CNT's), single-walled carbon nanotubes (SWNT's), and/or multi-walled carbon nanotubes (MWNT's). In some embodiments, the semi-solid electrode can have a yield stress of less than about 100 kPa.

公开(公告)号：US20250054939A1

公开(公告)日：2025-02-13

申请号：US18818410

申请日：2024-08-28

Applicant: 24M Technologies, Inc. ,  Kyocera Corporation

Inventor： Junji ARANAMI ,  Reymond ZAGARS ,  Naoki OTA ,  Junzheng CHEN ,  Ricardo BAZZARELLA

IPC: H01M4/04

Abstract: Embodiments described herein relate generally to apparatuses and processes for forming semi-solid electrodes having high active solids loading by removing excess electrolyte. In some embodiments, the semi-solid electrode material can be formed by mixing an active material and, optionally, a conductive material in a liquid electrolyte to form a suspension. In some embodiments, the semi-solid electrode material can be disposed onto a current collector to form an intermediate electrode. In some embodiments, the semi-solid electrode material can have a first composition in which the ratio of electrolyte to active material is between about 10:1 and about 1:1. In some embodiments, a method for converting the semi-solid electrode material from the first composition into the second composition includes removing a portion of the electrolyte from the semi-solid electrode material. In some embodiments, the method includes mechanically compressing the intermediate electrode to remove the portion of electrolyte from the semi-solid electrode material.

公开(公告)号：US20240372214A1

公开(公告)日：2024-11-07

申请号：US18777403

申请日：2024-07-18

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Naoki OTA ,  Jeffry DISKO ,  Anthony D'ANGELO

IPC: H01M50/414 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M10/0562 ,  H01M50/403 ,  H01M50/46 ,  H01M50/491

Abstract: Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and/or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and/or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.