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Lithium Carbonate patents

      

This page is updated frequently with new Lithium Carbonate-related patent applications.




 Non-aqueous electrolyte secondary battery patent thumbnailNon-aqueous electrolyte secondary battery
The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution and is characterized in that the nonaqueous electrolytic solution contains propylene carbonate and fluoroethylene carbonate, the positive electrode contains an oxide that contains lithium and one or more metallic elements m as a positive electrode active material, the one or more metallic elements m include at least one selected from the group consisting of cobalt and nickel, the negative electrode contains graphite as an active material, the negative electrode active material includes lithium and a lithium carbonate layer with a thickness of 1 μm or less on the surface thereof, and the ratio of the total lithium content a of the positive and negative electrodes to the metallic element m content mm of the oxide, a/mm, is greater than 1.01.. .
Sanyo Electric Co., Ltd.


 Process for making fluorinated lithiated mixed transition metal oxides patent thumbnailProcess for making fluorinated lithiated mixed transition metal oxides
Process for making a fluorinated lithiated transition metal oxide, comprising the step of treating a lithiated transition metal oxide containing at least two different transition metal cations and, as an impurity, at least one lithium compound selected from lithium hydroxide, lithium oxide and lithium carbonate and from combinations of at least two thereof, with at least one fluorine compound selected from hf, nh4f and (nh4)3alf6.. .
Basf Se


 Process for obtaining lithium from aluminosilicates and intermediate compounds patent thumbnailProcess for obtaining lithium from aluminosilicates and intermediate compounds
Process for obtaining lithium compounds and intermediate compounds, comprising the following steps: a) contacting aluminosilicate particles, for example α-spodumene, with at least one fluorine compound, for example hf, naf or others; b) stirring the mixture increasing the temperature until reaching an appropriate temperature; c) carrying out at least a precipitation and filtration process of the mixture of step b), and, d) recovering the lithium compound. The process may comprise using hf at a concentration between 5 and 30% v/v or naf at a concentration between 5 and 30% w/v; a solid/liquid ratio of step a) between 0.9 and 14.4% w/v; a particle size of between 29 and 200 μm.
Universidad Nacional De Cuyo


 Nonaqueous electrolyte secondary battery and  manufacturing the same patent thumbnailNonaqueous electrolyte secondary battery and manufacturing the same
A nonaqueous electrolyte secondary battery includes a prismatic housing having an opening and a sealing member sealing the opening. The prismatic housing contains a flat-wound electrode assembly and a nonaqueous electrolyte.
Sanyo Electric Co., Ltd.


 Processes for preparing lithium carbonate patent thumbnailProcesses for preparing lithium carbonate
There are provided methods for preparing lithium carbonate. For example, such methods can comprise reacting an aqueous composition comprising lithium hydroxide with co2 by sparging the co2 the said composition, thereby obtaining a precipitate comprising the lithium carbonate.
Nemaska Lithium Inc.


 Method for producing lithium composition and  producing sulfide solid electrolyte material patent thumbnailMethod for producing lithium composition and producing sulfide solid electrolyte material
A method for producing a lithium composition capable of suppressing the generation of polysulfides is provided. The method for producing a lithium composition includes a first aqueous solution forming step of forming a first aqueous solution by reacting iodine with a reducing aqueous solution containing calcium oxide, formic acid, and water under a condition of a ph of 5.5 or more and a ph of 10.21 or less through heating, a second aqueous solution forming step of forming a second aqueous solution by adding calcium oxide to the first aqueous solution, a third aqueous solution forming step of forming a third aqueous solution by adding lithium carbonate to the second aqueous solution, and a li2s forming step of forming the lithium sulfide (li2s) by sulfurizing lithium hydroxide (lioh) to form lithium hydrosulfide (lihs) and then eliminating hydrogen sulfide from lithium hydrosulfide (lihs)..
Toyota Jidosha Kabushiki Kaisha


 Method for producing alpha-lithium aluminate patent thumbnailMethod for producing alpha-lithium aluminate
The purpose of the present invention is to provide an industrially advantageous method for producing α-lithium aluminate which has physical properties that are suitable for use as an electrolyte holding plate of a mcfc having excellent thermal stability, even if the α-lithium aluminate is a fine material having a bet specific surface area of 10 m2/g or higher in particular. Provided is a method for producing α-lithium aluminate characterized by subjecting a mixture (a), which is obtained by mixing transitional alumina and lithium carbonate at an al/li molar ratio of 0.95-1.01, to a first firing reaction so as to obtain a fired product, and subjecting a mixture (b), which is obtained by adding an aluminum compound to the obtained fired product at quantities whereby the molar ratio of aluminum atoms in the aluminum compound relative to lithium atoms in the fired product (al/li) is 0.001-0.05, to a second firing reaction..
Nippon Chemical Industrial Co., Ltd.


 Corona ignition device with improved seal patent thumbnailCorona ignition device with improved seal
An electrically conductive glass seal for providing a hermetic bond between an electrically conductive component and an insulator of a corona igniter is provided. The glass seal is formed by mixing glass frits, binder, expansion agent, and electrically conductive metal particles.
Federal-mogul Ignition Company


 Spark plug with improved seal patent thumbnailSpark plug with improved seal
An electrically conductive glass seal for providing a hermetic bond between an electrically conductive component and an insulator of a spark plug is provided. The glass seal is formed by mixing glass frits, binder, expansion agent, and electrically conductive metal particles.
Federal-mogul Ignition Company


 Processes and systems for preparing lithium carbonate patent thumbnailProcesses and systems for preparing lithium carbonate
There are provided processes comprising submitting an aqueous composition comprising lithium sulphate and/or bisulfate to an electrolysis or an electrodialysis for converting at least a portion of said sulphate into lithium hydroxide. During electrolysis or electrodialysis, the aqueous composition is at least substantially maintained at a ph having a value of about 1 to about 4; and converting said lithium hydroxide into lithium carbonate.
Nemaska Lithium Inc.


Method and system for preparing high purity lithium carbonate

The invention discloses a preparation method and system of high purity lithium carbonate. The preparation method comprises: concentrating carbonic acid type salt lake bittern, then heating up to saturate, crystallize and separate out the lithium carbonate, and collecting crystals to obtain refined salts of lithium carbonate; flushing the collected refined salts of lithium carbonate with distilled water with a temperature above 60° c.
Guangzhou Ruishi Tianqi Energy Technology Co., Ltd

Method for manufacturing cathode electrode materials

Provided is a method for manufacturing a cathode electrode material, including the step of performing calcination of a mixture of lithium carbonate and a compound containing ni, and capable of mass-producing a cathode electrode material including a lithium composite oxide with high ni concentration industrially. The manufacturing method includes a mixture step of mixing lithium carbonate and a compound including ni, and a calcination step of performing calcination of a mixture obtained in the mixture step under oxidizing atmosphere to obtain a lithium composite compound with high ni concentration.
Hitachi Metals, Ltd.

Nonaqueous electrolyte secondary battery

A non-aqueous electrolyte secondary battery includes a pressure-sensitive current shut-off mechanism, wherein a positive electrode core body exposed portion is disposed at one end portion of a flat rolled electrode assembly, a negative electrode core body exposed portion is disposed at the other end portion, lithium carbonate is contained in a positive electrode mix layer, and a protective layer is disposed along the border with the positive electrode mix layer at the position opposite to a separator on the positive electrode core body exposed portion.. .
Sanyo Electric Co., Ltd.

Method and system for quickly extracting lithium carbonate from saline lake water

The present invention discloses a method for quickly extracting lithium carbonate from saline lake water and a system for the same. The method comprises: first quick-freezing the saline lake water to obtain lithium-rich brine, then evaporating under reduced pressure to enable lithium carbonate to be rapidly precipitated out.
Tibet Jin Hao Investment Co., Ltd.

Positive electrode active material for lithium ion secondary battery, and positive electrode for lithium ion secondary battery and lithium ion secondary battery comprising the same

A positive electrode active material includes a primary particle represented by compositional formula (1): li1+xniycozm1−x−y−zo2 (1), where x is a number satisfying a relation represented by an expression −0.12≦x≦0.2; y is a number satisfying a relation represented by an expression 0.7≦y≦0.9; z is a number satisfying a relation represented by an expression 0.05≦z≦0.3; and m is at least one element selected from the group consisting of mg, al, ti, mn, zr, mo, and nb; or a secondary particle into which the primary particle aggregates. The primary particle or the secondary particle includes a free lithium compound in a weight proportion of 0.1% or more and 2.0% or less, and the weight of lithium hydroxide in the free lithium compound is 60% or less of the weight of lithium carbonate in the free lithium compound..
Hitachi Metals, Ltd.

Method for producing positive electrode active material layer for lithium ion battery, and positive electrode active material layer for lithium ion battery

To provide a method for producing a positive electrode active material layer for lithium ion battery that can improve durability and internal resistance of lithium ion battery, and particularly lithium ion battery that operates at high voltage. The method for producing positive electrode active material layer for a lithium ion battery includes coating a substrate with positive electrode mixture slurry containing positive electrode active material, first lithium salt, second lithium salt and solvent, and drying off the solvent.
Toyota Jidosha Kabushiki Kaisha



Lithium Carbonate topics:
  • Lithium Carbonate
  • Sodium Carbonate
  • Electrolyte
  • Lithium Ion
  • Carbon Dioxide
  • Calcium Hydroxide
  • Electrolysis
  • Manganese Dioxide
  • Weight Loss
  • Lithium Sulfate
  • Electrodialysis
  • Concentrated
  • Battery Pack
  • Lithium Hydroxide
  • Alkali Metal


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    This listing is a sample listing of patent applications related to Lithium Carbonate for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Lithium Carbonate with additional patents listed. Browse our RSS directory or Search for other possible listings.


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