Patents Assigned to HE3DA s.r.o.
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Patent number: 10581083Abstract: A lithium accumulator includes at least two three-dimensional electrodes separated by a separator and encased together into an accumulator body with an electrolyte that is a non-aqueous solution of a lithium salt in an organic polar solvent. The two electrodes have a minimum thickness of 0.5 mm each. At least one electrode is a homogenous, compressed mixture of an electron conductive component and an active material. The active material is capable of absorbing and extracting lithium in the presence of electrolyte. The porosity of the pressed electrodes is 25 to 90%. The active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size. The separator includes a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.Type: GrantFiled: July 14, 2016Date of Patent: March 3, 2020Assignee: HE3DA S.R.O.Inventors: Jan Prochazka, Jr., Jan Prochazka
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Publication number: 20160322643Abstract: A lithium accumulator includes at least two three-dimensional electrodes separated by a separator and encased together into an accumulator body with an electrolyte that is a non-aqueous solution of a lithium salt in an organic polar solvent. The two electrodes have a minimum thickness of 0.5 mm each. At least one electrode is a homogenous, compressed mixture of an electron conductive component and an active material. The active material is capable of absorbing and extracting lithium in the presence of electrolyte. The porosity of the pressed electrodes is 25 to 90%. The active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size. The separator includes a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.Type: ApplicationFiled: July 14, 2016Publication date: November 3, 2016Applicant: HE3DA s.r.o.Inventors: Jan PROCHAZKA, JR., Jan PROCHAZKA
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Patent number: 9437855Abstract: A lithium accumulator includes at least two three-dimensional electrodes separated by a separator and encased together into an accumulator body with an electrolyte that is a non-aqueous solution of a lithium salt in an organic polar solvent. The two electrodes have a minimum thickness of 0.5 mm each. At least one electrode is a homogenous, compressed mixture of an electron conductive component and an active material. The active material is capable of absorbing and extracting lithium in the presence of electrolyte. The porosity of the pressed electrodes is 25 to 90%. The active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size. The separator includes a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.Type: GrantFiled: September 18, 2009Date of Patent: September 6, 2016Assignee: HE3DA s.r.o.Inventors: Jan Prochazka, Jr., Jan Prochazka
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Patent number: 9401510Abstract: A lithium accumulator with a housing includes at least one cell with two electrodes provided with current collectors and separated by a separator. Each electrode, free of organic binders, is pressed down onto both sides of the current collector made of a perforated metal strip in the form of metal network, expanded metal or perforated metallic foil. The minimum thickness of the electrodes is three times the thickness of the perforated metal strip.Type: GrantFiled: June 26, 2012Date of Patent: July 26, 2016Assignee: HE3DA s.r.o.Inventors: Jan Prochazka, Jr., Jaroslav Polivka, Jiri Postler
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Patent number: 9203123Abstract: A lithium accumulator containing positive and negative electrodes with a minimum thickness of 0.5 mm, separated by separators, where each electrode is deposited into a hole in a frame, as a part of a set of frames arranged in a stack between marginal covers, with electrical insulation between the frames of opposite electrodes and additional current collectors between identical electrodes, wherein each frame comprises at least one channel for passage of a heat exchange media and the channels of the individual frames are interconnected. Liquid accumulator electrolyte may be used as a heat exchange media.Type: GrantFiled: September 20, 2011Date of Patent: December 1, 2015Assignee: HE3DA s.r.o.Inventors: Jan Prochazka, Jr., Jan Prochazka, Sr., Jaroslav Polivka, Jiri Postler
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Publication number: 20150086848Abstract: A lithium accumulator with a housing comprising at least one cell with two electrodes (2a, 2b) provided with current collectors (3a, 3b) and separated by a separator (4) wherein each electrode (2a, 2b), free of organic binders, is pressed down onto both sides of the current collector (3a, 3b) made of a perforated metal strip in the form of metal network, expanded meal or perforated metallic foil. The minimum thickness of the electrodes (2a, 2b) is three times the thickness of the perforated metal strip (3a, 3b).Type: ApplicationFiled: June 26, 2012Publication date: March 26, 2015Applicant: HE3DA S.R.O.Inventors: Jan Prochazka, JR., Jaroslav Polivka, Jiri Postler
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Publication number: 20130177786Abstract: A lithium accumulator containing positive and negative electrodes with a minimum thickness of 0.5 mm, separated by separators, where each electrode is deposited into a hole in a frame, as a part of a set of frames arranged in a stack between marginal covers, with electrical insulation between the frames of opposite electrodes and additional current collectors between identical electrodes, wherein each frame comprises at least one channel for passage of a heat exchange media and the channels of the individual frames are interconnected. Liquid accumulator electrolyte may be used as a heat exchange media.Type: ApplicationFiled: September 20, 2011Publication date: July 11, 2013Applicant: HE3DA s.r.o.Inventors: Jan Prochazka, JR., Jan Prochazka, SR., Jaroslav Polivka, Jiri Postler
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Publication number: 20110165457Abstract: A lithium accumulator including at least two three-dimensional electrodes separated by a separator and encased together with an electrolyte, comprising a non-aqueous solution of a lithium salt in an organic polar solvent, into an accumulator body wherein the two electrodes have a minimum thickness of 0.5 mm each, of which at least one electrode comprises a homogenous, compressed mixture of an electron conductive component and an active material, capable to absorb and extract lithium in the presence of electrolyte, wherein the porosity of the pressed electrodes is 25 to 90%, the active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size, while the separator consists of a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.Type: ApplicationFiled: September 18, 2009Publication date: July 7, 2011Applicant: HE3DA s.r.o.Inventors: Jan Prochazka, JR., Jan Prochazka