Patents Assigned to Bathium Canada Inc.
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Patent number: 9812888Abstract: The invention disclosed is a method for decreasing the internal resistance or impedance of a battery or electrochemical cell is described which comprises the step of discharging the battery or cell until it reaches an overdischarge condition and maintaining the battery or cell in the overdischarge condition for a period of time sufficient to effect a diminution of the internal resistance or impedance of a battery or electrochemical cell; and a battery or electrochemical cell having a reduced impedance.Type: GrantFiled: January 16, 2014Date of Patent: November 7, 2017Assignee: Bathium Canada Inc.Inventors: Patrick Leblanc, Frederic Cotton, Thierry Guena, Cedric Reboul-Salze, Marc Deschamps, Thomas Calvez, Vincent Bodenez, Philippe Bernardo, Mathieu Dru
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Patent number: 9605229Abstract: A volatile methyl siloxane lubricant for use in the process of laminating lithium sheets into lithium films is disclosed.Type: GrantFiled: December 19, 2014Date of Patent: March 28, 2017Assignee: Bathium Canada Inc.Inventors: Patrick Leblanc, Frederic Cotton, Pierre Sirois
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Patent number: 9269950Abstract: A material C-AxM(XO4)y that is of particles of a compound of the formula AxM(XO4)y, wherein said particles include a carbon deposit deposited by means of pyrolysis on at least a portion of the surface thereof, and where: A is Li alone or partially replaced by at most 10 atomic % of Na or K; M is Fe(II), or Mn(II), or mixtures thereof alone or partially replaced by at most 30 atomic % of one or more metals selected from Mn, Ni and Co and/or at most 5% of Fe(III); XO4 is PO4 alone or partially replaced by at most 10 molar % of at least one group selected from SO4, SiO4 and MoO4; and where said material has a calcium impurity content of lower than about 1000 ppm.Type: GrantFiled: December 4, 2012Date of Patent: February 23, 2016Assignees: JOHNSON MATTHEY PUBLIC LIMITED COMPANY, BATHIUM CANADA INC.Inventors: Denis Geoffroy, Guoxian Liang, Michel Gauthier, Thorsten Lahrs, Nathalie Ravet, Michel Parent, Alain Vallee, Patrick Leblanc, Frederic Cotton
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Patent number: 9225000Abstract: An electrochemical cell battery having current collecting terminals acting as security device. The current collecting terminals utilize layers of PTC materials strategically positioned whereby if a temperature of an electrochemical cell rises above the transition temperature of the layer of PTC material, electrical current is prevented to flow between electrochemical cells by the layer of PTC material.Type: GrantFiled: July 22, 2011Date of Patent: December 29, 2015Assignee: Bathium Canada Inc.Inventors: Sebastien Geoffroy, Bruno Bacon, Yvan Roy, Claude Carignan, Alain Vallee
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Patent number: 9088037Abstract: An electrochemically active material is disclosed in which the particles of electrochemically active material have a zeta potential of less than 25 mV in absolute value (?25 mV to 0 mV; 0 mV to 25 mV) as measured in the medium (water and/or organic solvent) in which the particles are dispersed.Type: GrantFiled: May 24, 2013Date of Patent: July 21, 2015Assignee: Bathium Canada Inc.Inventors: Patrick Leblanc, Frederic Cotton, Alain Vallee, Edison Men
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Publication number: 20140197799Abstract: The invention disclosed is a method for decreasing the internal resistance or impedance of a battery or electrochemical cell is described which comprises the step of discharging the battery or cell until it reaches an overdischarge condition and maintaining the battery or cell in the overdischarge condition for a period of time sufficient to effect a diminution of the internal resistance or impedance of a battery or electrochemical cell; and a battery or electrochemical cell having a reduced impedance.Type: ApplicationFiled: January 16, 2014Publication date: July 17, 2014Applicant: Bathium Canada Inc.Inventors: Patrick Leblanc, Frederic Cotton, Thierry Guena, Cedric Reboul-Salze, Marc Deschamps, Thomas Calvez, Vincent Bodenez, Philippe Bernardo, Mathieu Dru
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Patent number: 8709628Abstract: A battery pack for an electric or hybrid vehicle having battery connectors for connecting batteries in series and a battery connector are disclosed that reduces the risks of potential electric shocks during assembly, servicing and in emergency situation. The battery connector includes an interrupter having disconnect capabilities in the event of the vehicle being involved in a collision.Type: GrantFiled: September 2, 2010Date of Patent: April 29, 2014Assignee: Bathium Canada Inc.Inventors: Claude Carignan, Pierre LeVerone, Alain Vallee, Stephane Carignan, Denis Pomerleau
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Publication number: 20130316251Abstract: An electrochemically active material is disclosed in which the particles of electrochemically active material have a zeta potential of less than 25 mV in absolute value (?25 mV to 0 mV; 0 mV to 25 mV) as measured in the medium (water and/or organic solvent) in which the particles are dispersed.Type: ApplicationFiled: May 24, 2013Publication date: November 28, 2013Applicant: Bathium Canada Inc.Inventors: Patrick LEBLANC, Frederic COTTON, Alain VALLEE, Edison MEN
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Patent number: 8557419Abstract: An electrochemical cell battery is disclosed having current collecting terminals acting as security device. The battery includes a plurality of electrochemical cells connected in series or parallel. Each electrochemical cell has a current collecting terminal connecting the positive current collectors together and a current collecting terminal connecting the negative current collectors together. The current collecting terminals each have a folded extension arm for electrically connecting two adjacent electrochemical cells together. The folded extension arms have a shape memory characteristic and are electrically connected together via a welding metal having a fusion temperature Tf of less than 180° C.Type: GrantFiled: September 2, 2010Date of Patent: October 15, 2013Assignee: Bathium Canada Inc.Inventor: Claude Carignan
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Patent number: 8420158Abstract: A process for making an electrode sheet for lithium electrochemical cells is disclosed. The process comprises the steps of: a) admixing a polyether polymer or copolymer soluble in water, at least one lithium salt, at least one electrochemically active material, water and an organic solvent miscible with water in a water/organic solvent ratio of a maximum of 50% organic solvent by volume to form a water-based solution/suspension containing by weight at least 20% active electrode material, at least 5% of a polyether polymer or copolymer, and at least 1.5% lithium salt; b) coating the water-based solution/suspension in the form of an electrode thin film onto an electrode support; and, c) drying the electrode thin film to obtain an electrode thin sheet having less than 1000 ppm of residual water.Type: GrantFiled: March 6, 2009Date of Patent: April 16, 2013Assignee: Bathium Canada Inc.Inventors: Patrick Leblanc, Frederic Cotton, Dave Lessard, Alain Vallee
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Patent number: 8372534Abstract: A battery pack having battery connectors for connecting batteries in series and a battery connector are disclosed that reduce the risks of potential electric shocks during assembly and servicing of a battery pack.Type: GrantFiled: September 2, 2010Date of Patent: February 12, 2013Assignee: Bathium Canada Inc.Inventors: Claude Carignan, Pierre Leverone, Alain Vallee, Shu-Fu Yeh, Guy Gilbert
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Patent number: 8354190Abstract: An electrode and an electrode material for lithium electrochemical cells are disclosed. The electrode material is in powder form and has a particle size distribution wherein the measured particle size distribution of the electrode material has a median size D50 ranging from 1.5 ?m and 3 ?m, a D10?0.5 ?m, a D90?10.0 ?m, and a calculated ratio (D90/D10)/D50?3.0 which is indicative of a peak of the measured particle size distribution on the left of the median D50 which improves the loading and energy density of the electrode produced with this electrode material powder.Type: GrantFiled: April 26, 2010Date of Patent: January 15, 2013Assignee: Bathium Canada Inc.Inventors: Frederic Cotton, Patrick LeBlanc, Thierry Guena, Alain Vallee, Jean-Luc Monfort
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Patent number: 8241541Abstract: The invention provides a pre-mix of positive electrode material in transportable solid form comprising polymer and solid particles of electrochemically active material and/or electronically conductive additives and a process for preparing a pre-mix positive electrode in transportable solid form. The pre-mix positive electrode material may also comprise an alkali metal salt either dissolved or dispersed in the mixture. The invention also provides making a cathode film from the transportable solid pre-mix of positive electrode material.Type: GrantFiled: August 9, 2007Date of Patent: August 14, 2012Assignee: Bathium Canada Inc.Inventors: Alain Vallee, Paul-Andre Lavoie, Patrick Leblanc, Regis Gagnon, Fabrice Regisser, Dany Brouillette
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Publication number: 20120189881Abstract: An electrochemical cell battery is disclosed having current collecting terminals acting as security device. The battery includes a plurality of electrochemical cells connected in series or parallel; each electrochemical cell having a current collecting terminal connecting the positive current collectors together and a current collecting terminal connecting the negative current collectors together; the current collecting terminals each having a folded extension arm for electrically connecting two adjacent electrochemical cells together. The current collecting terminals utilize layers of PTC materials strategically positioned whereby if a temperature of an electrochemical cell rises above the transition temperature of the layer of PTC material, electrical current is prevented to flow between electrochemical cells by the layer of PTC material.Type: ApplicationFiled: July 22, 2011Publication date: July 26, 2012Applicant: BATHIUM CANADA INC.Inventors: Sebastien Geoffroy, Bruno Bacon, Yvan Roy, Claude Carignan, Alain Vallee
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Patent number: 8147916Abstract: A process for making an electrode sheet for a solid lithium electrochemical cells is disclosed. The process comprises the steps of: a) admixing a polyether polymer or copolymer, at least one lithium salt, at least one electrochemically active material and purified water to form an aqueous solution/suspension containing by weight at least 40% purified water, at least 20% active electrode material, up to 10% electrically conductive material, at least 5% polyether polymer or copolymer, and at least 1.5% lithium salt; b) coating the aqueous solution/suspension in the form of an electrode thin film onto an electrode support; and, c) evaporating the water from the electrode thin film to obtain an electrode sheet having less than 1000 ppm of residual water. The evaporation step is preferably carried out through a dryer/oven tunnel having incremental drying zones.Type: GrantFiled: March 7, 2008Date of Patent: April 3, 2012Assignee: Bathium Canada Inc.Inventors: Patrick Leblanc, Frederic Cotton, Dave Lessard, Alain Vallee
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Patent number: 8142523Abstract: A method for making a battery is disclosed which comprises providing a plurality of Electrochemical Cell (EC) bundles; providing a current collecting terminal having first and second ends; electrically connecting the projections of the sheet like electrodes extending from one end a first EC bundle together via the first end of the current collecting terminal; electrically connecting the projections of the sheet like electrodes extending from one end of a second EC bundle together via the second end of the current collecting terminal such that the first and second EC bundles are mechanically and electrically connected together and form a string of at least two EC bundles; and folding the string of at least two EC bundles by bending the current collecting terminal connecting the at least two EC bundles together such that the first and second EC bundles are positioned in a side by side relationship.Type: GrantFiled: May 20, 2011Date of Patent: March 27, 2012Assignee: Bathium Canada Inc.Inventors: Nicolas Cyr, Martin Burns, Frederic Lague
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Publication number: 20120058371Abstract: An electrochemical cell battery is disclosed having current collecting terminals acting as security device. The battery includes a plurality of electrochemical cells connected in series or parallel. Each electrochemical cell has a current collecting terminal connecting the positive current collectors together and a current collecting terminal connecting the negative current collectors together. The current collecting terminals each have a folded extension arm for electrically connecting two adjacent electrochemical cells together. The folded extension arms have a shape memory characteristic and are electrically connected together via a welding metal having a fusion temperature Tf of less than 180° C.Type: ApplicationFiled: September 2, 2010Publication date: March 8, 2012Applicant: BATHIUM CANADA INC.Inventor: Claude CARIGNAN
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Publication number: 20120058382Abstract: A battery pack for an electric or hybrid vehicle having battery connectors for connecting batteries in series and a battery connector are disclosed that reduces the risks of potential electric shocks during assembly, servicing and in emergency situation. The battery connector includes an interrupter having disconnect capabilities in the event of the vehicle being involved in a collision.Type: ApplicationFiled: September 2, 2010Publication date: March 8, 2012Applicant: BATHIUM CANADA INC.Inventors: Claude CARIGNAN, Pierre LeVERONE, Alain VALLEE, Stephane CARIGNAN, Denis POMERLEAU
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Publication number: 20120058381Abstract: A battery pack having battery connectors for connecting batteries in series and a battery connector are disclosed that reduce the risks of potential electric shocks during assembly and servicing of a battery pack.Type: ApplicationFiled: September 2, 2010Publication date: March 8, 2012Applicant: BATHIUM CANADA INC.Inventors: Claude CARIGNAN, Pierre LEVERONE, Alain VALLEE, Shu-Fu YEH, Guy GILBERT
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Patent number: 7967939Abstract: A stacking apparatus and a method for assembly of electrochemical cells. The stacking apparatus includes at least one stacking head having an adjustable holding member adapted to hold an electrochemical laminate of a pre-determined length and means for adjusting the shape of the electrochemical laminate of the pre-determined length during stacking of a plurality of electrochemical laminates. The electrochemical laminates are assembled in a way that prevents air entrapment between the electrochemical laminates.Type: GrantFiled: December 7, 2005Date of Patent: June 28, 2011Assignee: Bathium Canada Inc.Inventors: Michael Parker, Gilles Gagnon