Samsung Electronics Co., Ltd.

Jeoyoung Shim

Woosung Jeon

Jooho Lee

Jaewoo Lee

Gyeongsu Park

Heegoo Kim

Changseung Lee

Sunghee Lee

Euiseong Moon

JaeWoo Lee

Yongkoo Kyoung

A secondary battery structure includes a first electrode structure including a plurality of first electrode elements spaced apart from each other and disposed in a form of an array, a second electrode structure spaced apart from the first electrode structure and including a second electrode element, and an electrolyte which allows ions to move between the first electrode structure and second electrode structure, where the first electrode structure and the second electrode structure define a cathode and an anode, and the number of the first electrode elements and the number of the second electrode element are different from each other.

Secondary battery structure and system, and methods of manufacturing and operating the same

An apparatus for analyzing an active material of a secondary battery may include: a first electrode; a piezoelectric layer on the first electrode; a second electrode on the piezoelectric layer, configured to provide a voltage having a polarity opposite to a polarity of the first electrode; and/or an insulating layer on the second electrode and including a through hole exposing a portion of the second electrode. A method of analyzing an active material of a secondary battery may include: disposing an active material in a through hole of a bulk acoustic resonator, in which a first electrode, a piezoelectric layer, a second electrode, and an insulating layer are stacked; measuring a resonance frequency of the resonator by applying an electric signal to the first and second electrodes of the resonator; and/or measuring a weight of the active material in the through hole, based on the measured resonance frequency.

Apparatus for analyzing active material of secondary battery and method of analyzing active material using the same

Provided is a method of bonding two surfaces, which includes providing nitrogen or ammonia plasma to a plastic material where a polysiloxane contacted, and a construct manufactured therefrom.

Method of bonding two surfaces and construct therefrom and microfluidic device containing the construct

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Yongin-si, South Korea

Jeoyoung Shim