A method for preparing a positive electrode material and related products are disclosed. The method includes mixing a lithium source with a phosphoric acid solution to form a first mixture; combining the first mixture with manganese hydrogen phosphate, an iron source, and optionally a source of an…
Provided is a cathode active material including lithium iron phosphate. A number-based particle size distribution curve of the primary particles has the first to third characteristic peaks. A peak position Dof the first characteristic peak is from 100 nm to 300 nm, and a number percentage…
The present disclosure relates to a positive electrode active material, an electrode, and a battery that improve the rate characteristics of a battery. The positive electrode active material includes a primary particle. The primary particle contains an olivine-type phosphate compound. The primary…
The present disclosure relates to a positive electrode active material, an electrode (10), and a battery (100) that improve the rate characteristics of a battery (100). The positive electrode active material includes a primary particle. The primary particle contains an olivine-type phosphate…
A battery pack for use in a spacecraft is provided. The battery pack includes one or more cells and an enclosure operable to receive the one or more cells therein. The one or more cells have a cathode material that includes lithium, iron, and phosphate. The enclosure is constructed at least…
A positive electrode material and a preparation method thereof, and a lithium-ion battery. The positive electrode material includes: a core layer including Li, Fe, Mn, PO ions, and doping element A; a shell layer, where at least a surface portion of the shell layer is coated on an outer surface of…
An LMFP composite positive electrode particle with a high performance conductive carbon structure, which is used in a positive electrode of a solid-state or semi-solid battery. The composite positive electrode particle includes an LMFP particle and a conductive layer coated on an outer surface of…
A cathode slurry composition according to an aspect includes a cathode active material, an acrylic dispersant, and a solvent. The cathode slurry composition has a solids content of 65% by weight or more, and a shear viscosity value of 150 Pa·s or less measured at a temperature of 25° C. and a shear…
A positive electrode active material and a preparation method thereof. The positive electrode active material includes a secondary particle composed of primary particles; and the primary particle includes LiFeMnA(PO), where −0.1≤a≤0.4, 0.5≤x≤0.7, 0≤y≤0.01, A includes at least one of Al, Mg, Ni, Co…
An electrode assembly includes a positive electrode material layer, where the positive electrode material layer of the electrode assembly includes a first positive electrode material LiMnFePO, a single-side thickness of the positive electrode material layer is Tμm, and 22≤T≤110. A length of a…
An electrode material includes a particle group of a coated active material. The coated active material includes an active material and a coating layer coating at least a part of a surface of the active material and including a first solid electrolyte. The electrode material satisfies at least one…
An LMFP particle is disclosed, the LMFP particle comprising active material decorated with an engineered coating material, the coating material comprising at least one material selected from a group comprising: ionic compounds of V5+; Mg2+; Ti4+; Zr4+; Nb5+; W6+; Cr6+; Mo6+; AlO; ZrO; TiO; NbO; and…
The present disclosure concerns rechargeable batteries (i.e., secondary batteries) having large form factors that include cathode active materials such as, but not limited to, lithium iron phosphate (LFP) active material, lithium manganese iron phosphate (LMFP) active material, or a combination…
A positive electrode plate, a preparation method thereof, a secondary battery, and an electric apparatus. The positive electrode plate includes a current collector and a positive electrode film layer formed on at least one side of the current collector. The positive electrode film layer includes a…
Disclosed herein is a cathode for a lithium-ion battery having a formula: LiM[XO]Owhere, 0≤u≤1, 0≤v≤2 and 0≤x≤1, wherein M is a transition metal element of manganese or a mixture of manganese and iron, and X is an element of phosphorus, silicon, sulfur, boron, or a mixture of these elements.
A positive electrode active material includes secondary particles. Each of the secondary particles includes primary particles. Each of the primary particles includes an olivine-type phosphate compound. A cross section of the secondary particle consists of a central portion and an outer peripheral…
One embodiment of the present invention provides a secondary battery which is stable in a high-potential state and/or a high-temperature state. The secondary battery includes a positive electrode and a negative electrode, and either or both of the positive electrode and the negative electrode…
A preparation method of a doped manganese phosphate precursor includes steps as follows. Manganous salt and a doping metal M salt are dissolved in an acidic solution to obtain a dissolved solution, and then the dissolved solution is mixed with a phosphoric acid to form a mixed solution. The mixed…
A cathode material for sulfide-based all-solid-state batteries, in which LiV(PO)(LVP) is doped with a transition metal having an oxidation number of +5 or more and the surface of the cathode material is substituted with a halogen element so as to have improved surface stability and energy density…
Provided are a positive active material, a positive electrode plate, a lithium-ion battery, and an electric device. The positive active material includes lithium iron phosphate particles. A volume percentage of the lithium iron phosphate particles having a particle size smaller than 1 μm is x, and…
Provided is a sodium-ion secondary battery having a high capacity and excellent safety. A sodium-ion secondary battery includes: a positive electrode containing a positive-electrode active material made of a crystallized glass containing crystals represented by a general formula NaMPO(where…
The epsilon polymorph of vanadyl phosphate, ε-VOPO, made from the solvothermally synthesized HVOPO, is a high-density cathode material for lithium-ion batteries optimized to reversibly intercalate two Li-ions to reach the full theoretical capacity at least 50 cycles with a coulombic efficiency of…
A positive electrode sheet, a secondary battery, a battery module, a battery pack and an electrical apparatus are described. The positive electrode sheet includes a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode…
A positive electrode sheet, a secondary battery, a battery module, a battery pack and an electrical apparatus are described. The positive electrode sheet includes a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode…
Disclosed herein is a process for making a coated cathode active material, where the process includes the following steps:
The present disclosure relates to the field of sodium-ion batteries and discloses a sodium-chromium-titanium-manganese phosphate self-supporting electrode material, and a preparation method therefor and use thereof; the sodium-chromium-titanium-manganese phosphate self-supporting electrode material…
Provided is a positive electrode slurry, a secondary battery, a battery module, a battery pack and a power consuming device. The positive electrode slurry comprises a positive electrode active substance, a conductive agent and a binder, wherein the binder comprises a polymer A, and the polymer A…
A negative electrode active material for a secondary battery includes composite particles. The composite particles include a lithium silicate phase and a silicon phase dispersed in the lithium silicate phase, wherein the silicon phase has lined portions in the lithium silicate phase, a maximum…
A ligand-coated doped lithium iron phosphate, wherein, a general formula of the ligand-coated doped lithium iron phosphate is LiFePO@Mn-T-C/N, wherein T is at least one of zinc, nickel, copper, iron, cobalt, gallium, or chromium.
A cathode slurry composition according to an aspect includes a cathode active material, an acrylic dispersant, and a solvent. The cathode slurry composition has a solids content of 65% by weight or more, and a shear viscosity value of 150 Pa·s or less measured at a temperature of 25° C. and a shear…