181 |
LITHIUM MANGANESE COMPOUNDS AND METHODS OF MAKING THE SAME |
US12831420 |
2010-07-07 |
US20100270498A1 |
2010-10-28 |
Yuan Gao; Marina Yakovleva; Brian Fitch |
Electrode materials such as LixMnO2 where 0.2
|
182 |
OXIDES HAVING HIGH ENERGY DENSITIES |
US11992782 |
2006-09-29 |
US20100264381A1 |
2010-10-21 |
Gerbrand Ceder; Kisuk Kang |
The present invention generally relates to certain oxide materials having relatively high energy and/or power densities. Various aspects of the invention are directed to oxide materials having a structure Bi(MjYk)O2, for example, a structure Lij(NijYk)O2 such as Li(Nio.5Mn0.5)02. In this structure, Y represents one or more atoms, each independently selected from the group consisting of alkaline earth metals, transition metals, Group 14 elements, Group 15, or Group 16 elements. In some cases, Y may have a combined valency of at least about 4. In some embodiments, such an oxide material may have an 03 crystal structure, and/or a layered structure such that the oxide comprises a plurality of first, repeating atomic planes comprising Li, and a plurality of second, repeating atomic planes comprising while another set of atomic planes comprises Ni and/or Y. It is a feature of the invention that techniques and compositions are provided in which relatively little exchange of atoms takes place between the atomic planes. For example, in certain embodiments, such exchange is inhibited such that less than 8% of the Li planes comprises Ni and/or Y atoms, and/or such that less than 8% of the Ni/Y planes comprises Li. The invention, in another aspect, is directed to methods of making such oxide materials, for example, using ion exchange processes. Yet other aspects of the invention are directed to methods of using any of the above-described oxide materials, methods of promoting such oxide materials, devices containing such oxide materials, and the like. |
183 |
Lithium manganese compounds and methods of making the same |
US11477070 |
2006-06-28 |
US07771874B2 |
2010-08-10 |
Yuan Gao; Marina Yakovleva; Brian Fitch |
Electrode materials such as LixMnO2 where 0.2
|
184 |
METAL OXIDE NANOCRYSTALS: PREPARATION AND USES |
US12566135 |
2009-09-24 |
US20100135937A1 |
2010-06-03 |
Stephen O'Brien; Limin Huang; Zhuoying Chen; Ioannis Kymissis; Zhang Jia |
Nanocrystalline forms of metal oxides, including binary metal oxide, perovskite type metal oxides, and complex metal oxides, including doped metal oxides, are provided. Methods of preparation of the nanocrystals are also provided. The nanocrystals, including uncapped and uncoated metal oxide nanocrystals, can be dispersed in a liquid to provide dispersions that are stable and do not precipitate over a period of time ranging from hours to months. Methods of preparation of the dispersions, and methods of use of the dispersions in forming films, are likewise provided. The films can include an organic, inorganic, or mixed organic/inorganic matrix. The films can be substantially free of all organic materials. The films can be used as coatings, or can be used as dielectric layers in a variety of electronics applications, for example as a dielectric material for an ultracapacitor, which can include a mesoporous material. Or the films can be used as a high-K dielectric in organic field-effect transistors. In various embodiments, a layered gate dielectric can include spin-cast (e.g., 8 nm-diameter) high-K BaTiO3 nanocrystals and parylene-C for pentacene OFETs. |
185 |
Cathode material for manufacturing a rechargeable battery |
US11510096 |
2006-08-25 |
US07700236B2 |
2010-04-20 |
Chih-Wei Yang |
A cathode material has one of olivine and NASICON structures and includes micrometer-sized secondary particles having a particle size ranging from 1 to 50 μm. Each of the micrometer-sized secondary particles is composed of crystalline nanometer-sized primary particles of a metal compound having a particle size ranging from 10 to 500 nm. |
186 |
3V Class Spinel Complex Oxides as Cathode Active Materials for Lithium Secondary Batteries, Method for Preparing the Same by Carbonate Coprecipitation, and Lithium Secondary Batteries Using the Same |
US11883508 |
2005-09-27 |
US20100062337A1 |
2010-03-11 |
Yang Kook Sun |
Disclosed herein is a 3V class spinel oxide with improved high-rate characteristics which has the composition Li1+x[MyMn(2−y)]O4−zSz (0≦x≦0.1, 0.01≦y≦0.5, 0.01≦z≦0.5, and M is Mn, Ni or Mg). Further disclosed is a method for preparing the 3V class spinel oxide by carbonate coprecipitation of starting materials, addition of sulfur, followed by calcining. The 3V class spinel oxide is spherical and has a uniform size distribution. A lithium secondary battery including the 3V class spinel oxide has a constant plateau at a potential of 3V and shows superior cycle characteristics. |
187 |
Method of preparation of positive electrode material |
US10675552 |
2003-09-30 |
US20050069484A1 |
2005-03-31 |
Vesselin Manev; Vijay Saharan; Yee-Ho Chia; Jeffrey Roberts |
A method for preparing a positive electrode material for a lithium-ion or lithium-ion polymer battery to reduce the moisture content of the positive electrode material. A lithiated transition metal oxide positive electrode material having at least one water-containing compound therein is treated to convert the water-containing compound to a water-free compound. One treatment in the method of the present invention involves exposing the positive electrode material at a temperature of 0-650° C. to a CO2-containing gas. The other treatment in the method of the present invention involves heating the positive electrode material to a temperature greater than 250° C. in the presence of an oxygen-containing gas, such as air and/or O2. The treatments may be, performed sequentially or concurrently. |
188 |
Lithium hydroxide compositions |
US09665879 |
2000-09-20 |
US06608008B1 |
2003-08-19 |
W. Novis Smith |
There is provided concentrated aqueous solutions of highly pure lithium hydroxide essentially free of carbon dioxide, packaged in an inert atmosphere. |
189 |
Method of preparing lithium salts |
US08931635 |
1997-09-16 |
US06555078B1 |
2003-04-29 |
Vijay Chandrakant Mehta |
The present invention provides an inexpensive process for the preparation of lithium salts of formula LiX having a desired or required level of purity using lithium chloride and lithium sulfate. In the process of the invention, a lithium salt selected from lithium chloride, lithium sulfate, and combinations thereof is reacted with NaX or KX in a aqueous, semiaqueous, or organic solution and the precipitated salts are removed to obtain the LiX solution of desired purity. Preferably, a semiaqueous solution containing water and an organic solvent is used at some point in the reaction. The process of the invention eliminates the use of highly acidic materials and thus reduces the cost of raw materials and the need for specialized equipment. |
190 |
High purity lithium salts and lithium salt solutions |
US174024 |
1998-10-16 |
US6017500A |
2000-01-25 |
Vijay Chandrakant Mehta |
The present invention provides an inexpensive process for the preparation of lithium salts of formula LiX having a desired or required level of purity using lithium chloride and lithium sulfate. In the process of the invention, a lithium salt selected from lithium chloride, lithium sulfate, and combinations thereof is reacted with NaX or KX in a aqueous, semiaqueous, or organic solution and the precipitated salts are removed to obtain the LiX solution of desired purity. Preferably, a semiaqueous solution containing water and an organic solvent is used at some point in the reaction. The process of the invention eliminates the use of highly acidic materials and thus reduces the cost of raw materials and the need for specialized equipment. |
191 |
Process for producing high purity lithium carbonate |
US890328 |
1978-03-27 |
US4207297A |
1980-06-10 |
Patrick M. Brown; Charles E. Falletta |
A continuous integrated process for the production of lithium hyroxide monohydrate and high purity lithium carbonate of large average particle size comprising converting impure lithium carbonate to lithium hydroxide by a causticization step, separating precipitated calcium carbonate from the resulting lithium hydroxide solution, precipitating lithium hydroxide monohydrate from a major portion of the lithium hydroxide solution and recovering same, introducing carbon dioxide or lithium carbonate to the remaining minor portion of the lithium hydroxide solution to precipitate additional calcium as calcium carbonate, separating the precipitated calcium carbonate from the lithium hydroxide solution, introducing carbon dioxide to the lithium hydroxide solution to precipitate high purity lithium carbonate of large average particle size, separating and recovering said lithium carbonate from the resulting lithium carbonate solution, and recycling said lithium carbonate solution to said causticization step. |
192 |
Product recovery from alkali metal wastes |
US849975 |
1977-11-09 |
US4200617A |
1980-04-29 |
Donald J. Levy |
A method and apparatus for safely and economically converting sodium sludge and other dangerous wastes containing metallic sodium, lithium and potassium into products of economic value. The process reacts solid or molten wastes with an aqueous solution to yield products of the metal hydroxides, hydrogen gas and waste heat while consuming only water. Both scrap sodium and sodium sludge are acceptable feedstocks for this unique float/spray process. |
193 |
Recovery of lithium as lioh.h20 from aqueous chloride brines containing lithium chloride and sodium chloride |
US3597340D |
1968-11-05 |
US3597340A |
1971-08-03 |
HONEYCUTT SAMMY C; BACH RICARDO O |
RECOVERY OF LITHIUM AS LIOH.H2O FROM AQUEOUS CHLORIDE FEED BRINES CONTAINING LICL AND NACL BY ELECTROLYZING SAID BRINES IN A DIAPHRAGM CELL, SEPARATING THE SOLIDS FROM THE ELECTROLYZED BRINE, SAID SOLIDS COMPRISING PREDOMINATELY LIOH.H2O, AND RECRYSTALLIZING SAID LIOH.H2O TO EFFECT PURIFICATION THEREOF.
|
194 |
Process for the purification of lithium hydroxide |
US13639761 |
1961-08-29 |
US3193352A |
1965-07-06 |
MCDONOUGH JOHN M; KLEIN MORTON J |
|
195 |
Recovery of lithium from lithium aluminate complex |
US63686957 |
1957-01-29 |
US2980497A |
1961-04-18 |
GOODENOUGH ROBERT D; STENGER VERNON A |
|
196 |
Cathode active materials having improved particle morphologies |
US15804106 |
2017-11-06 |
US10084187B2 |
2018-09-25 |
Hongli Dai; Huiming Wu; Dapeng Wang |
Mixed-metal oxides and lithiated mixed-metal oxides are disclosed that involve compounds according to, respectively, NixMnyCozMeαOβ and Lii+γNixMnyCozMeαOβ. In these compounds, Me is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations thereof; 0≤x≤1; 0≤y≤1; 0≤z<1; x+y+z>0; 0≤α≤0.5; and x+y+α>0. For the mixed-metal oxides, 1≤β≤5. For the lithiated mixed-metal oxides, −0.1≤γ≤1.0 and 1.9≤β≤3. The mixed-metal oxides and the lithiated mixed-metal oxides include particles having an average density greater than or equal to 90% of an ideal crystalline density. |
197 |
METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS |
US15755507 |
2016-08-26 |
US20180244531A1 |
2018-08-30 |
Jean-François MAGNAN; Guy BOURASSA; Nicolas LAROCHE; Gary PEARSE; Stephen Charles MACKIE; Mykolas GLADKOVAS; Peter SYMONS; J. David GENDERS; Geneviève CLAYTON; Pierre BOUCHARD; Bertin OUELLET |
The disclosure relates to methods for preparing lithium hydroxide. For example, such methods can comprise mixing a lithium-containing material with an acidic aqueous composition optionally comprising lithium sulfate and thereby obtaining a mixture; roasting the mixture under suitable conditions to obtain a roasted, lithium-containing material; leaching the roasted material under conditions suitable to obtain a first aqueous composition comprising lithium sulfate; submitting the first aqueous composition comprising lithium sulfate to an electromembrane process under suitable conditions for at least partial conversion of the lithium sulfate into lithium hydroxide and to obtain a second aqueous composition comprising lithium sulfate, the electromembrane process involving a hydrogen depolarized anode; optionally increasing concentration of acid in the second aqueous composition; and using the second aqueous composition comprising lithium sulfate as the acidic aqueous composition optionally comprising lithium sulfate for mixing with the lithium-containing material and to obtain the mixture. |
198 |
METHOD FOR PRODUCING LITHIUM HYDROXIDE AND LITHIUM CARBONATE |
US15573523 |
2016-05-11 |
US20180147531A1 |
2018-05-31 |
Sung Kook PARK; Kwang Seok Park; Sang Gil LEE; Woo Chul JUNG; Ki Young KIM; Hyun Woo LEE |
The present invention relates to a method for producing lithium hydroxide and lithium carbonate, wherein the lithium hydroxide and the lithium carbonate can be produced by a series of steps of: performing bipolar electrodialysis of a lithium-containing solution from which divalent ion impurities have been removed; concentrating lithium in the lithium-containing solution and at the same time, converting the lithium to lithium hydroxide; and carbonating the lithium hydroxide to obtain lithium carbonate. |
199 |
PROCESSING OF LITHIUM CONTAINING MATERIAL |
US15875267 |
2018-01-19 |
US20180142325A1 |
2018-05-24 |
Yatendra Sharma |
A process (10) for the treatment of a lithium containing material, the process comprising the steps of: (i) Preparing a process solution from the lithium containing material (12); (ii) Passing the process solution from step (i) to a series of impurity removal steps (36) thereby providing a substantially purified lithium chloride solution; and (iii) Passing the purified lithium chloride solution of step (ii) to an electrolysis step (70) thereby producing a lithium hydroxide solution. |
200 |
Stoichiometrically controlled lithium cobalt oxide based compounds |
US14855456 |
2015-09-16 |
US09979021B2 |
2018-05-22 |
Jens Paulsen; Maxime Blangero; Da-In Choi |
A lithium metal oxide powder for use as a cathode material in a rechargeable battery, consisting of a core material and a surface layer, the core having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the Li content is stoichiometrically controlled, wherein the metal M has the formula M=Co1-aM′a, with 0≤a≤0.05, wherein M′ is either one or more metals of the group consisting of Al, Ga and B; and the surface layer consisting of a mixture of the elements of the core material and inorganic N-based oxides, wherein N is either one or more metals of the group consisting of Mg, Ti, Fe, Cu, Ca, Ba, Y, Sn, Sb, Na, Zn, Zr and Si. |