Samsung Sdi Co., Inc.

3M Innovative Properties Company

Inkyu Park

Jongwoon Yang

Bongyoung Kim

Susumu Segawa

Woonseong Baek

Heongsin Kim

Tetsuya Okada

Segawa Susumu

JongTae Kim

Jungchul Moon

Jintae Hong

Testuya Okada

Yonguk Kim

Kyung Sun Choi

According to one embodiment of the present disclosure, the head cradle including 5 two head band members fastened to each other is provided, where the head band member includes: a support member extending in one direction; a first fastening part formed at one end portion of the support member and having an insertion hole formed to pass therethrough; a second fastening part formed at the other end portion of the support member; and a strap connection part which is formed at an end portion of the first 0 fastening part or the second fastening part and to which a strap connected to a mask main body is connected, where the support member includes a hole-section on which at least one slit hole having a shape extending at a predetermined angle with respect to the one direction is formed.

Head cradle including a head band member having excellent flexibility

A protective circuit module and a rechargeable battery including the same, the protective circuit module including a circuit board main body having an electrode terminal tab configured to electrically connect to an electrode terminal of a bare cell, a chip-type PTC device on the circuit board main body, and a heat transfer member connected to the chip-type PTC device and the electrode terminal tab.

Protective circuit module and rechargeable battery including the same

The present invention relates to a secondary battery, and in particular relating to a secondary battery in which connection between the bare cell and the protection circuit can be established by a mechanical connection system without using molding method. A secondary battery of the present invention includes a bare cell in which charging and discharging can be performed, a protection circuit substrate electrically connected to the bare cell, a substrate molding body integrally formed with the protection circuit substrate, a support member having a connection unit coupled to the substrate molding body for connecting the substrate molding body to the support member, and a connection member for connecting the substrate molding body to the connection unit.

Secondary battery

A charging control method for a battery pack including a plurality of battery cells in which a full charge voltage value is initially set as a first voltage value. The charging control method includes: charging the plurality of battery cells to the first voltage value in an initial charge mode; and resetting the full charge voltage value to a second voltage value less than the first voltage value in a subsequent charge mode.

Battery pack and charging control method thereof

A balancing method for a battery pack includes balancing battery cells near an end of discharge. A deep discharge of the battery cells can be prevented without using an overdischarge control unit. One battery cell balancing method includes: a balancing check condition determination step for determining whether or not a maximum voltage out of voltages of the battery cells is smaller than a reference voltage; a balancing start condition determination step for determining whether or not a residual capacity difference or voltage difference between the individual battery cells exceeds a reference value; a balancing time calculation step for calculating a balancing time for discharging the battery cell that exceeds the reference value; and a balancing operation step for discharging the selected battery cell when the battery cells are under charge or are at rest or when a discharge current of the battery cells is smaller than a reference current.

Battery pack and balancing method of battery cells

Growing community of inventors

Suwon-si, South Korea

Inkyu Park