Lg Chem, Ltd

Ji Yoon Kwon

In Sung Uhm

Je Young Kim

Hoe Jin Hah

Kyoung Ho Kim

Il Hong Kim

Jung Woo Yoo

Jungwoo Yoo

Disclosed is a battery cell having an electrode assembly that is sealed with an electrolyte solution within a battery case, the electrode assembly including one or more positive electrodes to which a positive electrode terminal is connected; one or more first negative electrodes to which a first negative electrode terminal is connected; one or more second negative electrodes to which a second negative electrode terminal is connected; and a separator disposed between the positive electrode and the first negative electrode or second negative electrode, or a separator disposed between the positive electrode and the first negative electrode or second negative electrode and a separator disposed between the first negative electrode and the second negative electrode.

Negative electrode for preventing deposition of manganese and battery cell including the same

Disclosed is a negative electrode active material for secondary batteries having improved lifespan characteristics. In particular, provided is a negative electrode active material, for secondary batteries, including silicon (Si), and amorphous hard carbon or low-crystalline soft carbon.

Negative electrode active material for secondary batteries having improved lifespan characteristics

Disclosed is a secondary battery to which an electrolyte can be additionally supplied. More particularly, provided is a secondary battery including an electrode assembly that includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and a porous elastic body that can contain an electrolyte, which are installed in a battery case.

Secondary battery to which electrolyte can be additionally supplied

Disclosed is a lithium secondary battery including an electrolyte, an electrode laminate, a battery case including a space part in which the electrolyte and the electrode laminate are embedded, and a sealing part surrounding the space part, and a gas permeable membrane.

Lithium secondary battery including gas permeable membrane

Disclosed are an electrode for a secondary battery having improved energy density and a lithium secondary battery including the same. More particularly, an electrode for a secondary battery, in which an electrode mix including an electrode active material, and a material having a shape easily rolled during electrode rolling as a conductive material is coated on an electrode current collector, and a lithium secondary battery including the same are provided.

Electrode for secondary battery having improved energy density and lithium secondary battery including the same

Disclosed is an electrode including a current collector and an electrode material layer formed on the current collector, the electrode material layer including a first electrode material layer and second electrode material layer having different electrode active materials.

Electrode including different electrode material layers and lithium secondary battery

Disclosed is an electrode for secondary batteries in which an electrode mix layer including an electrode active material is coated on an electrode collector, and a coating layer including aluminum (Al) and/or alumina (AlO) is formed on the electrode mix layer.

Electrode including coating layer for preventing reaction with electrolyte solution

Disclosed is a secondary battery, wherein an electrode assembly including at least one positive electrode respectively having positive electrode tabs not coated with a positive electrode active material; at least one negative electrode respectively having negative electrode tabs not coated with a negative electrode active material; and at least one separator disposed between the positive electrode and the negative electrode is sealed with an electrolyte solution in a battery case, the positive electrode tabs and the negative electrode tabs are respectively connected to positive electrode lead and negative electrode lead protruded to the outside of a battery case, and at least one an electrode terminal selected from the group consisting of the positive electrode tabs, the negative electrode tabs, the positive electrode lead and the negative electrode lead includes Wood's metal.

Growing community of inventors

Daejeon, South Korea

Ji Yoon Kwon