Sung Joo D&d, Inc.

Hyundai Motor Company

Kia Motors Corporation

Other

Seoul National University

Mcm Global Ag

Samsung Life Welfare Foundation

Sungjoo R&d Inc.

Sung Joo Kim

Janet Eunie Kim

Hyun Kyung Kim

Eun Sun Park

Ji Hye Lim

In Hee Lee

Kisuk Kang

Do Geun Jung

Jean Philippe Hurillon

Heiko Desens

Jae Yeol Park

Jong Min Yuk

Soo Jung Seo

Yun Shin Chung

Jae Won Joh

Tae Ho Cho

Sung Yeon Joo

Sung Hyon Kim

Myeong Hwan Lee

Bong Kim Choi

Dong Hee Seo

An aqueous secondary battery including: a positive electrode; a negative electrode; a separator; and an aqueous electrolytic solution including water and a metal salt represented by Chemical Formula 1 ADand having molality of about 5 M to about 40 M wherein in Chemical Formula 1, A is at least one metal ion selected from a sodium ion, a potassium ion, a magnesium ion, a calcium ion, a strontium ion, a zinc ion, or a barium ion, D is at least one type of atomic group ion selected from Cl, SO, NO, ClO, SCN, CFSO, CFSO, (CFSO)N, AlO, AlCl, AsF, SbF, BR, and POF, and 0&#x3c;x&#x2264;2, and 0&#x3c;y&#x2264;2.

Aqueous secondary battery

The present disclosure relates to a sodium-ion storage material and an electrode material for a sodium-ion battery, an electrode material for a seawater battery, an electrode for a sodium-ion battery, an electrode for a seawater battery, a sodium-ion battery, and a seawater battery, which include the sodium-ion storage material. Specifically, the sodium-ion storage material may include one or more materials selected from the group consisting of CuS, FeS, FeS, NiS, NbS, SbO, SbS, SnS and SnS, wherein 0&#x3c;x&#x2264;2. When the sodium-ion storage material according to the present disclosure is used, it may exhibit high discharge capacity, and when the sodium-ion storage material is applied to a sodium-ion battery which is a secondary battery, it may exhibit excellent charge/discharge cycle characteristics.

Sodium ion storage material

Shoe

Fabric

A method of controlling a continuously variable valve timing system, may include determining whether there is an error of a position of a cam, performing a passive control based on a value learned about a position of the cam during previous driving when it is determined that there is an error of the position of the cam, determining whether a motion of the continuously variable valve timing system is stopped while the passive control is performed based on the value learned about the position of the cam during the previous driving, learning the stopping position of the continuously variable valve timing system when it is determined that the motion of the continuously variable valve timing system is stopped, and learning a position for limp-home of the continuously variable valve timing system and then controlling the continuously variable valve timing system to the learned position for the limp-home.

Method of controlling continuously variable valve timing system for limp-home

A method for releasing a catching of a locking pin may include a control application step of releasing the locking pin from a locking pin hole by an electronic control unit (ECU) so that a catching phenomenon of the locking pin due to friction force into a rotation direction of a cam is prevented, and a cam shaking prevention control logic alternately performing, by the ECU, a holding control stopping a rotation of the cam and a rotation control of the cam into a target direction so that it is prevented that the cam is rotated in a direction which is opposite to a rotation target direction of the cam when the releasing of the locking pin is completed.

Method and system for releasing catching of locking pin

Charm

A method of preventing sticking of a CVVT locking pin includes a condition determining step that determines whether a CVVT operation condition is satisfied, an locking-pin unlocking step that unlocks a locking-pin before the CVVT is operated, and a CVVT operating step that operates the CVVT, and a system for preventing sticking of a CVVT locking pin.

System and method for preventing sticking of continuous variable valve timing locking-pin

Backpack

Growing community of inventors

Seoul, South Korea

Sung Joo Kim