Patents by Inventor Boris Tsenter

Boris Tsenter 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).

  • Patent number: 10211494
    Abstract: Disclosed herein are secondary electrochemical cells using lithium and hydrogen elements as active materials. In the process of charging hydrogen delivers electron to lithium, Li+-ion simultaneously cross Li+-ion conductive separator and deposits as metallic lithium or in matrix intercalated lithium. During discharge, Li delivers electron to proton of catholyte and moves as Li+-ion across Li+-ion conductive separator. Reversible fuel cells, water electrolyzers, metal hydrides or lithium itself can be used as sources of hydrogen.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 19, 2019
    Inventor: Boris Tsenter
  • Publication number: 20070236225
    Abstract: An invention is provided for determining a state of health of a battery. The invention includes applying a predefined load profile to a battery, and obtaining a plurality of battery response voltage data corresponding to points along the predefined load profile. A matrix of parameters, which includes, among other data, battery ohm resistance data, battery chemical resistance data, and battery electrical double layer capacity data, is calculated from the battery response voltage data. Thereafter, the matrix of parameters is utilized to determine the state of health of the battery.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 11, 2007
    Applicant: GEM Power, LLC
    Inventors: Boris Tsenter, John James
  • Publication number: 20050264263
    Abstract: Method of charging Li-based battery involves keeping the right balance among battery voltage, ohmic resistance, and charging current. Invention offers battery overvoltage protection value as the difference between the maximum voltage and the instantaneous open-circuit voltage. Overvoltage protection is supported when the minimum charging current is set as the ratio between difference in battery terminal voltage and instantaneous open-circuit voltage, and ohmic resistance. Method of equalizing Li-based battery is based on stabilization of cell voltage at end-of-charge by connecting in parallel to each cell, three series-connected Ni-based (i.e., NiCd or NiMH) cells, which serve as voltage stabilizers at end-of-charge. Individual lithium cell (flying cell) periodically connected to battery cells in process of charging and (or) discharging is used for equalizing of lithium battery cells.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 1, 2005
    Inventor: Boris Tsenter
  • Patent number: 6553771
    Abstract: An electrochemical heat pump system comprising an electrochemical pump, refrigerant-based cooling system, and gas-driven compressor. The electrochemical pump is capable of reversibly producing and consuming hydrogen gas. The cooling system comprises a condenser, compressor, and evaporator in thermal communication with an object to be cooled. The compressor comprises a chamber having a fixed volume and a flexible separator that physically divides the chamber into a gas space and a refrigerant space containing vapor refrigerant. As hydrogen gas is produced in the gas space, the flexible separator extends into the refrigerant space thereby expanding the gas space and compressing the vapor refrigerant. As the vapor refrigerant is compressed, it is forced through the condenser where the refrigerant is liquefied. The liquid refrigerant then passes through the evaporator where the liquid refrigerant is evaporated by absorbing heat from the object to be cooled.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: April 29, 2003
    Assignee: Borst Inc.
    Inventor: Boris Tsenter
  • Publication number: 20020112848
    Abstract: A reciprocal design for an electrochemical heat exchanger comprised of a gas-based driving system, a liquid-based cooling system, and a non-permeable flexible diaphragm to physically separate the contents of the driving system from the contents of the cooling system while maintaining a pressure based communication between the contents of the two systems. The gas-based driving system utilizes a hydrogen electrochemical pump to induce circulation of a liquid coolant through the cooling system. Said liquid coolant exchanges heat with the object to be cooled and transfers heat out of the heat exchange system by way of matched banks of radiator tubes.
    Type: Application
    Filed: February 5, 2002
    Publication date: August 22, 2002
    Inventors: Boris Tsenter, Alexei Petrov
  • Patent number: 6425440
    Abstract: A reciprocal design for an electrochemical heat exchanger comprised of a gas-based driving system, a liquid-based cooling system, and a non-permeable flexible diaphragm to physically separate the contents of the driving system from the contents of the cooling system while maintaining a pressure based communication between the contents of the two systems. The gas-based driving system utilizes a hydrogen electrochemical pump to induce circulation of a liquid coolant through the cooling system. Said liquid coolant exchanges heat with the object to be cooled and transfers heat out of the heat exchange system by way of matched banks of radiator tubes.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: July 30, 2002
    Assignee: Borst, Inc.
    Inventors: Boris Tsenter, Alexei Petrov
  • Publication number: 20020066277
    Abstract: An electrochemical heat pump system comprising an electrochemical pump, refrigerant-based cooling system, and gas-driven compressor. The electrochemical pump is capable of reversibly producing and consuming hydrogen gas. The cooling system comprises a condenser, compressor, and evaporator in thermal communication with an object to be cooled. The compressor comprises a chamber having a fixed volume and a flexible separator that physically divides the chamber into a gas space and a refrigerant space containing vapor refrigerant. As hydrogen gas is produced in the gas space, the flexible separator extends into the refrigerant space thereby expanding the gas space and compressing the vapor refrigerant. As the vapor refrigerant is compressed, it is forced through the condenser where the refrigerant is liquefied. The liquid refrigerant then passes through the evaporator where the liquid refrigerant is evaporated by absorbing heat from the object to be cooled.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 6, 2002
    Inventor: Boris Tsenter
  • Patent number: 6313605
    Abstract: A method of charging a rechargeable battery which comprises charging the battery with a charging current; sampling conditions of the battery during charging to recognize potential adverse conditions within the battery; interrupting the charging current periodically to create current-free periods and sampling an open circuit voltage of the battery during each current-free period to identify potential overcharge conditions in the battery; lowering the charging current if any adverse conditions are identified and continuing charging with the charging current if adverse charging conditions are not identified; and terminating charging when a predetermined value is recognized. The method of charging nickel-metal hydride and nickel-cadmium batteries is based on switching charging current as soon as temperature related battery open circuit voltage reaches the first predetermined value, tapering current and continuing charging up to terminating point.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: November 6, 2001
    Assignee: Total Battery Management, Inc.
    Inventor: Boris Tsenter
  • Patent number: 6167721
    Abstract: An electrochemical heat exchanger which includes a housing, hydrogen producing/consuming portions separated by a proton exchange membrane and a gas space designed to contact an object in need of cooling. The gas space includes either hydrogen or a liquid gas which is placed in thermal contact with an item to be cooled. The hydrogen gas or liquid coolant exchanges heat with the element to be cooled and is constantly replenished by hydrogen or liquid coolant forced through the heat exchanger by a pressure differential created between the respective hydrogen electrodes.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: January 2, 2001
    Assignee: Borst, Inc.
    Inventor: Boris Tsenter
  • Patent number: 6097172
    Abstract: An apparatus and method for charging a battery are described in a technique wherein charge pulses are followed by discharge pulses and then first rest periods and other discharge pulses followed by second rest periods. Selected ones of the second rest periods are extended in time to enable a battery equilibrium to be established and the open circuit voltage of the battery to settle down and reflect an overcharging condition of the battery. By comparing the open circuit voltages measured during different extended second rest periods small voltage decreases can be reliably detected and used to determine an overcharging condition such as when gases are generated and affect the open circuit voltage. Once overcharging is detected the battery charging is stopped.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: August 1, 2000
    Assignee: Advanced Charger Technology, Inc.
    Inventors: Yury M. Podrazhansky, Boris Tsenter
  • Patent number: 6043631
    Abstract: A method of charging a rechargeable battery which comprises charging the battery with a charging current; sampling a charging voltage of the battery during charging to recognize potential adverse conditions within the battery; interrupting the charging current periodically to create current-free periods and sampling an open circuit voltage of the battery at a plurality of points during each current-free period to identify potential overcharge conditions in the battery; lowering the charging current if any of the above-identified adverse conditions are identified and continuing charging with the charging current if the potential adverse charging condition is not identified; and terminating charging when a negative slope on a chemical polarization versus time curve is identified below a pre-determined minimum level.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: March 28, 2000
    Assignee: Total Battery Management, Inc.
    Inventor: Boris Tsenter
  • Patent number: 6040685
    Abstract: A method of charging a rechargeable lithium battery which comprises charging the battery with a charging current; sampling a charging voltage of the battery during charging to recognize potential electrolyte decomposition; interrupting the charging current periodically to create current-free periods and sampling an open circuit voltage of the battery at a plurality of points during each current-free period to identify potential shunting and unequal states of charge among individual cells of the battery; lowering the charging current if any of the above-identified adverse conditions are identified and continuing charging with the charging current if the potential adverse charging condition is not identified; and terminating charging when the charging current is lowered below a pre-determined minimum level.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: March 21, 2000
    Assignee: Total Battery Management, Inc.
    Inventors: Boris Tsenter, Mikhail Golod
  • Patent number: 5900718
    Abstract: A battery charger and method of charging a rechargeable battery which comprises charging the battery with an initial charging current and measuring and comparing the charging temperature to an initial temperature to identify a temperature factor which either identifies a need to lower the current or terminate the charging current. The temperature factor may be a temperature gradient .DELTA.T. The open circuit voltage may be monitored from the beginning or may begin when .DELTA.T is identified. V.sub.OCV is plotted with respect to time t elapsed to identify a point or points on the V.sub.OCV (t) curve, such as an inflection point in the dV.sub.OCV /dt data or a transition point in the d.sup.2 V.sub.OCV /dt.sup.2 which indicate the onset of overcharge. If the open circuit voltage V.sub.OCV of the battery is sampled from the beginning of charging the second order differential information should be ignored until a predetermined temperature gradient is realized.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: May 4, 1999
    Assignee: Total Battery Management,
    Inventor: Boris Tsenter
  • Patent number: 5768906
    Abstract: An electrochemical heat exchanger including a housing, at least one electrochemical cell within the housing with a first electrode and a hydrogen electrode at least partially immersed in a liquid electrolyte, and positive and negative terminals of the electrochemical cell connected through the housing to respective positive and negative ends of a power supply. The housing includes a gas space which is in communication with a heat exchange chamber. The heat exchange chamber can be a flexible chamber capable of expanding in response to an increase in pressure in the electrochemical cell and contracting in response to a decrease in pressure in the electrochemical cell or it can be a conduit whereby an element to be cooled is placed in thermal contact with either hydrogen gas or a liquid coolant.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: June 23, 1998
    Assignee: Borst, Inc.
    Inventor: Boris Tsenter
  • Patent number: 5746064
    Abstract: An electrochemical heat exchanger including a housing, at least one electrochemical cell within the housing with a first electrode and a hydrogen electrode at least partially immersed in a liquid electrolyte, and positive and negative terminals of the electrochemical cell connected through the housing to respective positive and negative ends of a power supply. The housing includes a gas space which is in communication with a heat exchange chamber. The heat exchange chamber can be a flexible chamber capable of expanding in response to an increase in pressure in the electrochemical cell and contracting in response to a decrease in pressure in the electrochemical cell or it can be a conduit whereby an element to be cooled is placed in thermal contact with either hydrogen gas or a liquid coolant.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: May 5, 1998
    Assignee: Borst, Inc.
    Inventor: Boris Tsenter
  • Patent number: 5729116
    Abstract: An apparatus and method of recognizing a shunt caused by formation of dendrites in a rechargeable lithium battery which comprises charging the battery with a charging current, sampling the charging current voltage of the battery at pre-determined time intervals in order to identify one or more point indicating onset of shunting, and terminating charging if the shunt or dendrite is indicated. If a shunt is not recognized charging is continued. Dendrite formation or the beginning of shunting due to such formation is indicated by any one of the following conditions: a negative gradient in sampled voltage values; a negative gradient in sampled steady open circuit values; and a negative gradient in the chemical polarization voltage values which may be calculated by sampling both the open circuit voltage soon after current interruption and steady open circuit voltages during a plurality of currentless phases.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: March 17, 1998
    Assignee: Total Battery Management, Inc.
    Inventor: Boris Tsenter
  • Patent number: 5694023
    Abstract: A method and an apparatus for adjusting the process of charging a battery so as to charge the battery as rapidly as possible while avoiding overheating of or damage to the battery. The method provides for applying a charging pulse (C1) which provides an average charging current, applying a first depolarizing pulse (D1), waiting for a first rest period (DW1), measuring the voltage (V1) at a predetermined point within the first rest period, applying a second depolarizing pulse (D2), waiting for a second rest period (DW2), measuring the voltage (V2) at the predetermined point within the second rest period, determining a difference between the voltage (V1) and the voltage (V2), and decreasing the average charging current if the difference is greater than a predetermined amount. The present invention also provides for determining whether the battery is low on water.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: December 2, 1997
    Assignee: Advanced Charger Technology, Inc.
    Inventors: Yury M. Podrazhansky, Boris Tsenter
  • Patent number: 5569554
    Abstract: A voltage regulator for a sealed rechargeable storage battery containing one or more rechargeable working cells and at least one regulator cell. The regulator cells are capable of consuming gas in a gas space within the sealed battery during charging of the working cells. The regulator cell is in gaseous communication with the gas space, and having a voltage stabilizer maintaining a preselected voltage range to the regulator cell and maintain a current to the regulator cell depending on the gas to be consumed.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: October 29, 1996
    Assignee: Acme Electric Corporation
    Inventor: Boris Tsenter
  • Patent number: 5290640
    Abstract: A sealed rechargeable storage battery containing one or more rechargeable working cells and at least one regulator cell. The working cells are capable of generating gas in a gas space within the sealed battery during charging of the working cells. The regulator cell is in gaseous communication with the gas space, the regulator cell being chargeable and dischargeable by a control circuit to regulate the amount of gas in the gas space.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: March 1, 1994
    Assignee: Acme Electric Corporation
    Inventors: Boris Tsenter, Menahem Anderman
  • Patent number: 5254414
    Abstract: A method of charging a metal-air or metal-oxygen electrochemical cell which serves to extend the useful life of the cell. Charging of the cell takes place with the addition of hydrogen to the air or oxygen cell which prevents the formation of oxygen and reduces the deterioration of the electrodes caused by oxidation. The conventional metal-air or metal-oxygen cell which is capable of injecting air or oxygen to the gas electrode during cell discharge is slightly modified to give it the ability to also inject hydrogen to the gas electrode during charging.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: October 19, 1993
    Assignee: Battery Technologies International
    Inventor: Boris Tsenter