Samsung Sdi Co., Inc.

Young-Hak Pyo

Ria Ju

Hee-Youl Yoon

Sang-Chul Seo

Sang-Young Jin

Ji-Hoon Sim

Sergey Vasichev

Seung-Hyuck Paek

A charging/discharging system includes a charging/discharging power unit for applying power to a battery cell, a chamber, a jig unit for holding the battery cell mounted in the chamber, an air conditioning unit for adjusting temperature and humidity in the chamber, and an interface unit for controlling the charging/discharging power unit, and for controlling the air conditioning unit, wherein the charging/discharging power unit, the chamber, the air conditioning unit, and the interface unit are combined as an integrated structure.

Charging and discharging system

A charger and discharger for a secondary battery includes a secondary battery coupled to an output stage of the charger and discharger, a first converter circuit including a first pulse voltage generator that outputs a first pulse voltage according to a first duty ratio, and a first inductor that outputs a first current in proportion to a value of an integral of the outputted first pulse voltage with respect to time to a positive electrode terminal of the secondary battery, a second converter circuit including a second pulse voltage generator that outputs a second pulse voltage according to a second duty ratio, and a second inductor that outputs a second current in proportion to a value of an integral of the outputted second pulse voltage with respect to time to a negative electrode terminal of the secondary battery, and first and second controllers controlling the duty ratios of the first and second pulse voltage generators, respectively.

Charger and discharger for secondary battery

Growing community of inventors

Yongin-si, South Korea

Young-Hak Pyo