Patents by Inventor Ajay Kochhar

Ajay Kochhar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220152626
    Abstract: A process for recovering materials from a black mass material obtained from lithium-ion batteries can include: i) conveying a black mass material as a black mass solid stream; ii) leaching the black mass solid stream to form a pregnant leach solution and residual solids; iii) separating the pregnant leach solution from the residual solids; iv) isolating a copper product from the pregnant leach solution; v) isolating an aluminum (Al) and/or iron (Fe) product from the pregnant leach solution; vi) isolating a manganese (Mn) product from the from the pregnant leach solution; vii) isolating a cobalt (Co) product from the from the pregnant leach solution; viii) isolating a nickel (Ni) product from the from the pregnant leach solution; ix) isolating a salt by-product from the pregnant leach solution; and x) isolating a lithium product the pregnant leach solution.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Patent number: 11273453
    Abstract: An apparatus for carrying out size reduction of battery materials under immersion conditions can include a housing configured to hold an immersion liquid comprising at least one of sodium hydroxide and calcium hydroxide. A first feed chute may define an opening therein for receiving battery materials of a first type into the housing and a first submergible comminuting device may be disposed within the housing and submerged in the immersion liquid to receive the battery materials of the first type from the first feed chute. The first submergible comminuting device may be configured to cause a size reduction of the battery materials of the first type to form a first reduced-size battery material.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: March 15, 2022
    Assignee: Li-Cycle Corp.
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Patent number: 11135595
    Abstract: An apparatus for carrying out size reduction of battery materials under immersion conditions can include a housing configured to hold an immersion liquid comprising at least one of sodium hydroxide and calcium hydroxide. A first feed chute may define an opening therein for receiving battery materials of a first type into the housing and a first submergible comminuting device may be disposed within the housing and submerged in the immersion liquid to receive the battery materials of the first type from the first feed chute. The first submergible comminuting device may be configured to cause a size reduction of the battery materials of the first type to form a first reduced-size battery material.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: October 5, 2021
    Assignee: Li-Cycle Corp.
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Patent number: 11077452
    Abstract: The present application provides a process to recover materials from rechargeable lithium-ion batteries, thus recycling them. The process involves processing the batteries into a size-reduced feed stream; and then, via a series of separation, isolation, and/or leaching steps, allows for recovery of a copper product, cobalt, nickel, and/or manganese product, and a lithium product; and, optional recovery of a ferrous product, aluminum product, graphite product, etc. An apparatus and system for carrying out size reduction of batteries under immersion conditions is also provided.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: August 3, 2021
    Assignee: Li-Cycle Corp.
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Patent number: 10960403
    Abstract: A process for recovering component materials from lithium battery materials, the process comprising the steps of: a) processing lithium battery materials in a comminuting apparatus comprising at least a first comminuting device that is submerged in an immersion liquid, thereby creating reduced-size battery materials and liberating electrolyte material and a black mass material comprising anode and cathode powders from within the lithium battery materials and providing a sized-reduced feed stream comprising the reduced size battery materials and the black mass material and electrolyte materials entrained within the immersion liquid; and b) processing the size-reduced feed stream to obtain at least a black mass solid stream that comprises the black mass material and a retained portion of the immersion liquid having entrained electrolyte materials.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: March 30, 2021
    Assignee: Li-Cycle Corp.
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Publication number: 20210078013
    Abstract: An apparatus for carrying out size reduction of battery materials under immersion conditions can include a housing configured to hold an immersion liquid comprising at least one of sodium hydroxide and calcium hydroxide. A first feed chute may define an opening therein for receiving battery materials of a first type into the housing and a first submergible comminuting device may be disposed within the housing and submerged in the immersion liquid to receive the battery materials of the first type from the first feed chute. The first submergible comminuting device may be configured to cause a size reduction of the battery materials of the first type to form a first reduced-size battery material.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Publication number: 20210078012
    Abstract: An apparatus for carrying out size reduction of battery materials under immersion conditions can include a housing configured to hold an immersion liquid comprising at least one of sodium hydroxide and calcium hydroxide. A first feed chute may define an opening therein for receiving battery materials of a first type into the housing and a first submergible comminuting device may be disposed within the housing and submerged in the immersion liquid to receive the battery materials of the first type from the first feed chute. The first submergible comminuting device may be configured to cause a size reduction of the battery materials of the first type to form a first reduced-size battery material.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Patent number: 10919046
    Abstract: An apparatus for carrying out size reduction of battery materials under immersion conditions having a battery inlet and at least a first comminuting device disposed within a housing and configured to cause a size reduction of the battery materials to form reduced-size battery materials and to liberate electrolyte materials and a black mass material comprising anode and cathode powders from within the battery materials. An immersion liquid can be within the housing and can submerge the first comminuting device so the black mass material and the reduced-size battery material are entrained within the immersion liquid to form a sized-reduced feed stream. A feed outlet may be downstream from the first comminuting device.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: February 16, 2021
    Assignee: Li-Cycle Corp.
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Publication number: 20200331003
    Abstract: An apparatus for carrying out size reduction of battery materials under immersion conditions having a battery inlet and at least a first comminuting device disposed within a housing and configured to cause a size reduction of the battery materials to form reduced-size battery materials and to liberate electrolyte materials and a black mass material comprising anode and cathode powders from within the battery materials. An immersion liquid can be within the housing and can submerge the first comminuting device so the black mass material and the reduced-size battery material are entrained within the immersion liquid to form a sized-reduced feed stream. A feed outlet may be downstream from the first comminuting device.
    Type: Application
    Filed: June 25, 2020
    Publication date: October 22, 2020
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Publication number: 20200331002
    Abstract: A process for recovering component materials from lithium battery materials, the process comprising the steps of: a) processing lithium battery materials in a comminuting apparatus comprising at least a first comminuting device that is submerged in an immersion liquid, thereby creating reduced-size battery materials and liberating electrolyte material and a black mass material comprising anode and cathode powders from within the lithium battery materials and providing a sized-reduced feed stream comprising the reduced size battery materials and the black mass material and electrolyte materials entrained within the immersion liquid; and b) processing the size-reduced feed stream to obtain at least a black mass solid stream that comprises the black mass material and a retained portion of the immersion liquid having entrained electrolyte materials.
    Type: Application
    Filed: June 25, 2020
    Publication date: October 22, 2020
    Inventors: Ajay Kochhar, Timothy George Johnston
  • Publication number: 20200078796
    Abstract: The present application provides a process to recover materials from rechargeable lithium-ion batteries, thus recycling them. The process involves processing the batteries into a size-reduced feed stream; and then, via a series of separation, isolation, and/or leaching steps, allows for recovery of a copper product, cobalt, nickel, and/or manganese product, and a lithium product; and, optional recovery of a ferrous product, aluminum product, graphite product, etc An apparatus and system for carrying out size reduction of batteries under immersion conditions is also provided.
    Type: Application
    Filed: May 30, 2018
    Publication date: March 12, 2020
    Inventors: Ajay Kochhar, Timothy George Johnston