Disclosed are a targeted oxidation solvent for regeneration of a waste lithium-ion cathode material, and use thereof. The targeted oxidation solvent includes sodium methylene dinaphthalene sulfonate and tetrahydronaphthalene in a mass-to-volume ratio of 0.33 to 0.45 g/mL, and the targeted oxidation…
The present invention relates to: a binder comprising a polyamide polymer containing a monomer unit including an aromatic ring; a positive electrode slurry comprising same; a positive electrode; and a secondary battery.
A secondary battery is provided and includes a positive electrode, a negative electrode, a separator interposed between a main surface of the positive electrode and a main surface of the negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active…
A battery cell, a battery, and an electric device. The battery cell comprises: a shell; at least one electrode assembly, which is disposed inside the shell; and at least one elastic buffer pad, which is arranged on at least part of the surface of the electrode assembly and/or inside the electrode…
A method for producing a garnet-type oxide solid electrolyte includes: obtaining an intermediate by pressure molding of LiLaZrOpowder having a median diameter (D50) of 0.02 to 0.2 μm; and obtaining a first garnet-type oxide solid electrolyte by heating the intermediate at 950 to 1050° C. for 2 to 7…
The present disclosure provides a non-aqueous electrolyte comprising a lithium salt, an organic solvent and a compound of Formula 1 below as an additive: wherein, In Formula 1, R is any one selected from the group consisting of F, R, an alkyl group having 1 to 10 carbon atoms in which can be…
Provided is a lithium secondary battery including a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the positive electrode comprises a positive current collector; and a positive…
The present invention relates to a positive electrode for a sodium secondary battery, the positive electrode including a current collector, a first positive electrode active material layer disposed on the current collector, and a second positive electrode active material layer disposed on the first…
The present invention relates to a lithium secondary battery, in which a relationship among a size of the secondary battery, an amount of remaining ethylene carbonate, and a reaction area of a negative electrode satisfies a specific condition to improve safety when high heat is applied from an…
The present invention relates to a cylindrical lithium secondary battery comprising: an electrode assembly comprising a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; an electrolyte; and a battery case accommodating the…
The present invention relates to a lithium secondary battery having improved high-temperature cycle characteristics, and particularly, to a lithium secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes…
A battery and an electrical device. The battery comprises an electrolyte solution. The electrolyte solution comprises a first diluent, the first diluent comprising at least one of the compounds represented by formulas (I) to (IV), where R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R and R each…
An anode according to various embodiments comprises: a first metal layer formed of a lithium metal; and a second metal layer which is formed of a material other than the lithium metal and which at least partially overlaps and is bonded to the first metal layer, wherein the second metal layer can be…
A positive active material for a rechargeable lithium battery according to embodiments of the present disclosure comprises lithium metal phosphate particles containing manganese and iron, the proportion of manganese being in a predetermined range.
Provided are an electrolyte, and an alkali metal secondary battery containing same. The electrolyte comprises a combination of an alkali metal salt and a solvent. The solvent comprises a combination of an ionic liquid, a weak polar solvent and an inert diluent, the weak polar solvent being a cyclic…
The present disclosure relates to a positive electrode for an all-solid-state battery and an all-solid-state battery including the same. More specifically, by using two types of positive electrode active materials having different nickel contents and particle sizes (D50) as positive electrode…
The present invention relates to a positive electrode active material including a small-particle diameter lithium iron manganese phosphate-based oxide and a large-particle diameter lithium iron phosphate-based oxide, wherein the small-particle diameter lithium iron manganese phosphate-based oxide…
A sulfide-based solid electrolyte comprises 0.1 to 5 mol% of at least one element A that is selected from the group consisting of Group 1 and Group 2 elements, excluding Li, when analyzed by inductively coupled plasma spectroscopy (ICP). Accordingly, the moisture stability of a sulfide-based solid…
An electrochemical cell having a cathode comprising a fluorinated carbon nanotube (F-CNT), an anode and a solid electrolyte; wherein the solid electrolyte comprises an electrolyte component comprising 50 to 95 wt.% of an alkali metal-containing electrolyte salt, and 5 to 50 wt.% of a polymer…
L'invention concerne un accumulateur électrochimique (A) métal-ion avec un dispositif d'interruption de courant ,(11) intégré dans l'accumulateur, qui comprend un réservoir (14) rempli d'au moins un matériau endothermique et isolant électrique. Le dispositif étant commandé en pression, et…
An electrochemical cell having a cathode comprising a fluorinated carbon nanotube (F-CNT), an anode and a solid electrolyte; wherein the solid electrolyte comprises an electrolyte component comprising i. 5 to 50 wt.% of an alkali metal-containing electrolyte salt, and ii. 50 to 95 wt.% of a…
The present invention relates to a lithium secondary battery including: an electrode assembly including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; an electrolyte including a lithium salt and an organic solvent; and…
A lithium secondary battery may include an electrode assembly including a positive electrode, an electrolyte, and a battery case including an internal space for accommodating the electrode assembly and the electrolyte. The positive electrode includes a positive electrode active material, and the…
The present invention relates to a dry electrode including a current collector, and an electrode material mixture film disposed on the current collector, wherein the electrode material mixture film includes an electrode active material and a fibrillizable binder, a ratio (I/I) of a CH+ peak…
A positive electrode according to the present invention includes a current collector, a positive electrode mixture layer provided on a portion on the current collector and including a positive electrode active material, and an insulation layer adjacent to the positive electrode mixture layer and…
The disclosure discloses an electrode mixture film including an electrode active material, and a binder having a three-dimensional fiber network structure, wherein the electrode mixture film has an average value of shear strength of 15 N/mm or greater, a ratio of shear strength in a TD direction to…
The present invention relates to a dry electrode including a current collector, and an electrode mixture film including an electrode active material and a fiberizable binder disposed on the current collector, wherein the current collector has a modulus of 13 GPa to 30 GPa.
A main object of the present disclosure is to provide an electrode active material of which volume change due to charge and discharge is small. The present disclosure achieves the object by providing an electrode active material including a silicon clathrate II type crystal phase, wherein a…
The present invention relates to an electrode mixture film including an electrode active material, a conductive material, and a fiberizable binder, wherein the electrode mixture film includes a side portion positioned at both ends in a width direction of the electrode mixture film, and a central…
Disclosed in embodiments of the present application are a battery cell, a battery, and an electric device. The battery cell has a capacity of C and comprises a casing, and at least a partial region of the casing has a tensile strength of Rm at a temperature of 25 °C, wherein Rm and C satisfy: 250…