Patents by Inventor Johann Lejosne

Johann Lejosne 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).

  • Accumulator battery pack, comprising magnetic shunts that can be actuated on demand for the electrical switching of one or more of the accumulators
    Patent number: 11923520
    Abstract: Defining magnetic locks with permanent magnet and inductive coil that can be controlled instantaneously on demand within a battery pack by injection of a low electrical current from one or more BMSs. Whatever the positioning of the magnetic locks within the battery pack, one or more controlling BMSs can be positioned either on each accumulator or busbar, or on a branch to control on demand the set of accumulators in electrical series or in parallel, in the branch, either singly or at overall pack level.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: March 5, 2024
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Johann Lejosne, Pierre Jost, Pierre Perichon
  • Accumulator battery pack, comprising devices for passive magnetic between accumulators and busbars, and, where appropriate, passive shunt of one or more accumulators in case of failure of these ones
    Patent number: 11114730
    Abstract: A battery pack wherein each battery is mechanically and electrically connected by a magnetic device to a busbar. In case of failure of any accumulator, it is disconnected completely passively because its failure generates an inactivation of the magnetic device. The disconnection causes the gravity drop of the accumulator and the possibly completely passive implementation of an accumulator shunt.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 7, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Johann Lejosne, Pierre Jost, Pierre Perichon
  • ACCUMULATOR BATTERY PACK, COMPRISING MAGNETIC SHUNTS THAT CAN BE ACTUATED ON DEMAND FOR THE ELECTRICAL SWITCHING OF ONE OR MORE OF THE ACCUMULATORS
    Publication number: 20200083513
    Abstract: Defining magnetic locks with permanent magnet and inductive coil that can be controlled instantaneously on demand within a battery pack by injection of a low electrical current from one or more BMSs. Whatever the positioning of the magnetic locks within the battery pack, one or more controlling BMSs can be positioned either on each accumulator or busbar, or on a branch to control on demand the set of accumulators in electrical series or in parallel, in the branch, either singly or at overall pack level.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 12, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Johann LEJOSNE, Pierre JOST, Pierre PERICHON
  • ACCUMULATOR BATTERY PACK, COMPRISING DEVICES FOR PASSIVE MAGNETIC BETWEEN ACCUMULATORS AND BUSBARS, AND, WHERE APPROPRIATE, PASSIVE SHUNT OF ONE OR MORE ACCUMULATORS IN CASE OF FAILURE OF THESE ONES
    Publication number: 20200083515
    Abstract: A battery pack wherein each battery is mechanically and electrically connected by a magnetic device to a busbar. In case of failure of any accumulator, it is disconnected completely passively because its failure generates an inactivation of the magnetic device. The disconnection causes the gravity drop of the accumulator and the possibly completely passive implementation of an accumulator shunt.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 12, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Johann LEJOSNE, Pierre JOST, Pierre PERICHON
  • Electrochemical supercapacitor device made from an electrolyte comprising, as a conductive salt, at least one salt made from an alkali element other than lithium
    Patent number: 9773620
    Abstract: The invention relates to a device of the hybrid supercapacitor type comprising at least one cell comprising: a porous positive electrode comprising activated carbon; a negative electrode comprising a carbonaceous material capable of inserting an alkaline element other than lithium, this carbonaceous material being different from the activated carbon used at the positive electrode; and a non-aqueous electrolyte comprising a salt selected from salts of an alkaline metal other than lithium.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: September 26, 2017
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Philippe Azais, Johann Lejosne, Matthieu Picot
  • SELF-POWERED DEVICE PROVIDED WITH SELF-DESTRUCTION MEANS
    Publication number: 20170110710
    Abstract: The self-powered device includes a control circuit supplied by a power supply source, and self-destruction unit configured to destroy the device by impairing the power supply source. The invention also relates to the corresponding self-destruction method.
    Type: Application
    Filed: March 17, 2015
    Publication date: April 20, 2017
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Lionel PICARD, Johann LEJOSNE, Philippe AZAÏS, David DESCARSIN
  • ELECTROCHEMICAL SUPERCAPACITOR DEVICE MADE FROM AN ELECTROLYTE COMPRISING, AS A CONDUCTIVE SALT, AT LEAST ONE SALT MADE FROM AN ALKALI ELEMENT OTHER THAN LITHIUM
    Publication number: 20160071658
    Abstract: The invention relates to a device of the hybrid supercapacitor type comprising at least one cell comprising: a porous positive electrode comprising activated carbon; a negative electrode comprising a carbonaceous material capable of inserting an alkaline element other than lithium, this carbonaceous material being different from the activated carbon used at the positive electrode; and a non-aqueous electrolyte comprising a salt selected from salts of an alkaline metal other than lithium.
    Type: Application
    Filed: April 22, 2014
    Publication date: March 10, 2016
    Inventors: Philippe Azais, Johann Lejosne, Matthieu Picot
  • DETECTION OF A MALFUNCTION IN AN ELECTROCHEMICAL ACCUMULATOR
    Publication number: 20150022159
    Abstract: An electrochemical accumulator, including a casing, at least two electrodes and an electrolyte contained in the casing. There is a ferromagnetic material contained in the casing and having remanent magnetization. There is also a magnetic sensor arranged outside the casing and capable of measuring a remanent magnetic field of said ferromagnetic material. There is further included a circuit configured to determine the temperature inside the casing as a function of the measured remanent magnetic field.
    Type: Application
    Filed: January 8, 2013
    Publication date: January 22, 2015
    Inventors: Pierre Perichon, François Alcouffe, Roland Blanpain, Johann Lejosne