Samsung Electronics Co., Ltd.

Ness Capacitor Co., Ltd.

Sung-chul Park

Jin Ho Lee

Sung-min Kim

Tae-Young Lee

Kyung-ik Cho

Chil-Youl Yang

Myoung-Hwan Lee

Yong-Ho Jung

Eun-Sil Kim

Scott Seongwook Lee

Jae-eun Kang

A data transmission method is provided, including adjusting a data transmission speed when a number of retransmission of a data transmission unit reaches a predetermined number, wherein the retransmission is performed when a transmission failure occurs, transferring the data transmission unit at the adjusted data transmission speed, and readjusting the adjusted data transmission speed to a basic data transmission speed when data transmission is successful, and reducing the basic data transmission speed when at least one of a retransmission rate and a number of the transmission failure satisfies a predetermined threshold condition.

Wireless communication system including communication apparatus and data communication method thereof

In a safety vent part and an electric energy storage device having the same, the safety vent part includes a plate coupled to the device, a metal sheet and a metal cap. A hole having a step portion is formed through the plate, and is in communication with an interior of the device. The metal cap having an exhaust nozzle corresponding the hole is coupled into the step portion by a tight fit. The metal sheet is disposed between a bottom surface of the step portion and the metal cap. When an internal pressure of the device is higher than a predetermined breaking pressure, the internal pressure of the device breaks the metal sheet. A gas generated abnormally in the device is exhausted through the hole and exhaust nozzle.

Safety vent part and electric energy storage device having the same

Growing community of inventors

Suwon-si, South Korea

Sung-chul Park