Lg Energy Solution, Ltd.

University of California

Lg Chem, Ltd

Seoul National University

Jeongbeom Lee

Hoejin Hah

Jong Keon Yoon

Jae Hyun Lee

Oh Byong Chae

Ji Heon Ryu

Ying Shirley Meng

Hyunwoong Yun

Jihyun Kim

Ohbyong Chae

Seung Mo Oh

Min Sang Song

Byong Seon Lee

So-Yeon Ham

A method for manufacturing a lithium secondary battery that can exhibit improved capacity and energy density compared to existing lithium ion batteries and lithium metal secondary batteries, and has excellent safety and lifetime characteristics. The method includes assembling a battery comprising an anode, a cathode, a separator, and an electrolyte, and charging the battery. In the step of assembling the battery, a ratio of an anode load amount to a cathode load amount (N/P ratio) is 0.01 to 0.99, and in the step of charging the battery, charging is performed based on the cathode load amount.

Manufacturing method of lithium secondary battery including a step of charging the battery based on a cathode load amount

A secondary includes an electrode assembly having a jelly roll structure including a positive electrode sheet, a negative electrode sheet, and a separator; a cylindrical case in which the electrode assembly is received; and a flat spiral spring positioned between an outer peripheral surface of the electrode assembly and an inner surface of the cylindrical case.

Secondary battery and device including the same

Disclosed is a negative electrode for an all-solid-state battery and an all-solid-state battery including the negative electrode. More specifically, disclosed is a pre-lithiated silicon negative electrode, and an all-solid-state battery comprising the same.

All-solid-state battery comprising a pre-lithiated silicon negative electrode

The present invention relates to a negative electrode for a lithium metal battery, a manufacturing method thereof, and a lithium metal battery including the same. Specifically, in an embodiment of the present invention, in order to improve conductivity while improving adhesion between the negative electrode current collector and the negative electrode active material of a lithium metal battery, an adhesive layer including a binder and a conductive material is provided between the negative current collector and the negative electrode active material.

Lithium metal battery

The present invention relates to a separator capable of inhibiting the growth of lithium dendrites, and a lithium secondary battery including the same. According to the present invention, the stability and life cycle characteristic of a lithium secondary battery can be remarkably improved.

Separator including porous coating layer containing additive that occludes lithium ions, and lithium secondary battery comprising the same

A secondary battery static pressure jig and a secondary cell internal pressure control method using the same is provided. The secondary battery static pressure jig, includes: a supporting member disposed on both surfaces of a battery cell to support the battery cell; a piezoelectric element that is disposed on at least one of surfaces of the supporting member and the battery cell contacting each other and measures a pressure applied to the battery cell; and a controlling part that controls a volume of the piezoelectric element according to the pressure measured by the piezoelectric element, wherein a volume of the piezoelectric element may be changed according to the volume change of the battery cell, and the pressure applied to the battery cell from the supporting member by the volume change of the piezoelectric element may be made to be a constant pressure.

Secondary battery static pressure jig and secondary cell internal pressure control method using the same

The present disclosure relates to a lithium secondary battery assembled without an anode active material. Since the lithium secondary battery of the present disclosure does not contain an anode active material such as a lithium metal during the assembling process, the manufacturing process is simple and easy, and it is possible to improve processability and manufacturing costs. In addition, it has an irreversible compensating additive, thereby exhibiting excellent battery life.

Lithium secondary battery

Disclosed are a high-capacity negative electrode active material and a lithium secondary battery including the same. More particularly, the negative electrode active material includes 50 wt % or more of an alkali metavanadate based on the total weight of a negative electrode active material, wherein the alkali metavanadate has a crystalline phase or an amorphous phase, and a composition of formula AVO.

Growing community of inventors

Daejeon, South Korea

Jeongbeom Lee