Abstract:
Provided is a separator for a lithium secondary battery. The separator for the lithium secondary battery may include a separator substrate, a first coating layer on the separator substrate, and a second coating layer on the first coating layer, wherein the first coating layer includes a solid electrolyte, and the second coating layer includes a lithium compound.
Abstract:
Disclosed is a composite electrode for an all-solid-state secondary battery. The composite electrode includes a composite positive electrode and a composite negative electrode, wherein each of the composite positive electrode and the composite negative electrode includes an electrode active material, and an ion-conducting composite binder configured to include an inorganic ion conductor for an ion movement path and an organic ion conductor for binding of the electrode active material.
Abstract:
A lithium battery according to the inventive concept includes: a first electrode structure; a second electrode structure separated from the first electrode structure; and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes: a lithium salt; an organic solvent; and at least one among a material represented by Formula 1 and a material represented by Formula 2.
Abstract:
Provided is a solid electrolyte composition including a solid electrolyte with a protective layer provided on a surface thereof, and a polymer binder. The protective layer includes at least one of an inorganic layer, including at least one of an oxide, a nitride, and a sulfide, an organic layer, including a polydopamine derivative, and a self-assembled monolayer, including an organosilane.
Abstract:
Provided is a lithium battery including a first pouch film, a first anode part on the first pouch film, a second cathode part on the first anode part, a polymer insulating film on the second cathode part, the polymer insulating film including a disk which is configured to penetrate the polymer insulating film, a second anode part on the polymer insulating film, a first cathode part on the second anode part, and a second pouch film on the first cathode part. Herein, the second cathode part is electrically connected to the second anode part through the disk.
Abstract:
A negative electrode active material for an all-solid-state battery may include first graphite particles, second graphite particles, and silicon particles, wherein the first graphite particles have a spheroidal structure, the second graphite particles have a plate structure, the first graphite particles include about 30 to 80 parts by weight with respect to 100 parts by weight of the negative electrode active material, the second graphite particles include about 10 to 60 parts by weight with respect to 100 parts by weight of the negative electrode active material, and the silicon particles include about 5 to 15 parts by weight with respect to 100 parts by weight of the negative electrode active material.
Abstract:
Provided is a lithium battery including a first electrode structure, a second electrode structure spaced apart from the first electrode structure, and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes a lithium salt, an organic solvent, and an additive, wherein the additive includes a coordination compound catalyst represented by Formula 1.
TMX.yH2O [Formula 1]
n Formula 1, TM is a +2-valent transition metal cation, y is an integer of 0 to 6, and X is a −2-valent ligand containing an aromatic ring.
Abstract:
Provided is a lithium composite anode including a metal film, and lithium ion conductors and electron conductors dispersed on one surface of the metal film, wherein portions of the lithium ion conductors and electron conductors are impregnated into the metal film from the one surface of the metal film.
Abstract:
A method of preparing a lithium battery according to an embodiment of the present invention may include preparing a mixture including lithium phosphorus sulfide and metal sulfide, preparing an electrode composite by applying a physical pressure to the mixture, wherein the electrode composite includes lithium phosphorus sulfide, lithium metal sulfide, and amorphous sulfide, preparing an electrode active layer by using the electrode composite, forming an electrode current collector on one side of the electrode active layer, and forming an electrolyte layer on another side of the electrode active layer.
Abstract:
A method of preparing a lithium phosphate-based solid electrolyte according to an embodiment of the present invention may include preparing a precursor solution which includes a lithium compound, a phosphate compound, and an aluminum compound, forming a first intermediate by performing a hydrothermal reaction process on the precursor solution, forming a second intermediate by calcinating the first intermediate, and crystallizing the second intermediate. The precursor solution may further include a metal compound or a metalloid compound. The lithium phosphate-based solid electrolyte of the present invention may have high ionic conductivity and high purity.