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 lithium battery binder composition in accordance with some example embodiments of the inventive concept may include a lithium ion polymer, an inorganic particle and an organic solution in which a lithium salt is dissolved. The lithium ion polymer may be a cellulosic polymer having sulfonic acid lithium salt or carboxylic acid lithium salt functional group. The lithium ion polymer may be manufactured by substituting hydroxyl group or carboxylic group of cellulosic polymer. The lithium battery binder composition may be used to at least one of an electrolyte, a cathode layer and an anode layer.
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 method for manufacturing a solid electrolyte includes dissolving first polymers and second polymers in a cosolvent including a first cosolvent and a second cosolvent to provide a preparation solution; adding a lithium solution to the preparation solution to provide a mixture solution; removing the second cosolvent from the mixture solution to prepare an electrolyte paste that exhibits thixotropy; and coating the electrolyte paste onto a substrate to form an electrolyte film, wherein the electrolyte paste in a gel state is characterized by the first polymers being aligned in parallel to one another in one direction; the second polymers randomly surrounding the first polymers and having an average molecular weight that is greater than that of the first polymers; and a lithium solution provided between the first polymers and the second polymers.
Abstract:
A method of fabricating a solid polymeric electrolyte having a pattern includes mixing constituents including a liquid electrolyte, a photo-crosslinking agent, and inorganic particles to form an electrolyte paste; dispersing together the constituents of the electrolyte paste; coating the electrolyte paste on a substrate; pressing the electrolyte paste with a patterned mold having a shape to copy the shape of the patterned mold onto the electrolyte paste and provide said pattern; and illuminating an ultraviolet light onto the electrolyte paste to induce a photo-crosslinking reaction and cure the photo-crosslinking agent of the electrolyte paste, wherein said solid polymeric electrolyte includes a polymer matrix having a mesh structure, the polymer matrix being formed of the cured photo-crosslinking agent; inorganic particles distributed in the polymer matrix; and a lithium salt and an organic solvent impregnated between the polymer matrix and the inorganic particles.
Abstract:
A method of preparing an oxide-based solid electrolyte includes preparing a precursor solution which includes a lanthanide complex and a metal complex; preparing an intermediate by a hydrothermal reaction that is performed on the precursor solution; adding a lithium compound and a dopant precursor to the intermediate to prepare a mixture; and crystallizing the mixture. The mixture is crystallized by preparing a first oxide-based solid electrolyte by performing a first crystallization process on the mixture; and preparing a second oxide-based solid electrolyte by performing a second crystallization process on the first oxide-based solid electrolyte, wherein the second oxide-based solid electrolyte has a stoichiometric composition that is the same as that of the first oxide-based solid electrolyte, but that has a different crystal structure.
Abstract:
An organic/inorganic hybrid electrolyte includes inorganic particles, a first polymer surrounding the inorganic particles, a second polymer having a network structure and surrounding the first polymer, and an organic solution. In the organic/inorganic hybrid electrolyte, ions may be transferred to the organic solution through the first polymer and/or the second polymer. As the inorganic particles are distributed to be provided, they may be involved in transferring ions in the organic/inorganic hybrid electrolyte. The organic/inorganic hybrid electrolyte may have high ionic conductivity while ensuring stability and mechanical strength.
Abstract:
Provided is a method of manufacturing a lithium battery. The method of manufacturing the lithium battery includes providing a anode part including a anode collector, a anode layer, and a anode electrolyte layer which are successively stacked on a first pouch film, providing a cathode part including a cathode collector, a cathode layer, and a cathode electrolyte layer which are successively stacked on a second pouch film, and sealing the first and second pouch films to couple the anode part to the cathode part.
Abstract:
An oxide-based solid electrolyte according to the present invention may be LixLa3M2O12 and may have a cubic phase. The oxide-based solid electrolyte may further include first and second dopants. A method of preparing an oxide-based solid electrolyte according to the concept of the present invention may include mixing a lithium compound, a lanthanum compound, a metal compound, a first dopant precursor, and a second dopant precursor to prepare an intermediate, and crystallizing the intermediate to prepare LixLa3M2O12 crystals having a cubic phase.
Abstract:
A solid polymeric electrolyte having a pattern, and a lithium battery including the same, includes a polymer matrix having a mesh structure and being formed of a cured photo-crosslinking agent; inorganic particles substantially uniformly distributed in the polymer matrix; and a liquid electrolyte comprised of a lithium salt and an organic solvent impregnated between the polymer matrix and the inorganic particles. The liquid electrolyte and the cured photo-crosslinking agent are present in a weight ratio ranging from 50:50 to 99:1. The liquid electrolyte containing the cured photo-crosslinking agent and the inorganic particle are present in a weight ratio ranging from 10:90 to 90:10. The solid polymeric electrolyte has properties suitable for a printing process to provide the pattern including a thickness ranging from about 10 nm to about 500 μm and, prior to curing the photo-crosslinking agent, a viscosity ranging from 100-10,000 poise under a shear rate condition of 1 sec−1.