Lg Chem, Ltd

Other

Lg Energy Solution, Ltd.

Hyo Seok Park

Young Joon Shin

Hyun Woo Park

Soo Young Kim

Hak Seo Oh

Jin Hwan Ko

Youl Kwon Sung

Dong Seok Shin

Sung Hyuk Youn

Ji Sun Kim

Sung Ik Kim

Min Ho Youn

The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity.

Pouch type case and battery pack including the same

A communicating method between a master and a slave connected through a belt connected to a gripper-unit in a hoist device of a rail car, and to technology in which the master and the slave perform power line communication through a power supply line for supplying power formed in a belt, thereby more stably transmitting and receiving signals in a simple system structure.

Communicating method between master communication device and slave communication device for controlling cripper-unit in hoist device of rail car

The present invention relates to an electrode assembly of a porous structure and a secondary battery including the same. In an electrode assembly including a plurality of cathodes, anodes, and separators, the present invention provides a secondary battery including an electrode assembly including one or more through holes, and a passing sealing portion supplementarily sealed on positions corresponding to the through holes. The secondary battery according to the present invention may prevent the inner short and increase safety by including the fused portion of an electrode assembly and a battery case, stably fixing them, and holding back the movement of the electrode assembly. In addition, the present invention has an effect of being capable of greatly enhancing impregnation on electrolyte since the electrode assembly has a porous structure.

Electrode assembly with porous structure and secondary battery including the same

A lithium secondary battery of the present invention may simultaneously improve high output and high capacity characteristics by including a first active material layer having high output characteristics and a second active material layer having high capacity characteristics respectively on a cathode collector and an anode collector.

Lithium secondary battery including multi-layered active material layers

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Daejeon, South Korea

Hyo Seok Park