Title:
BATTERY PACK, BATTERY SYSTEM, AND PRE-CHARGE METHOD
Document Type and Number:
WIPO Patent Application WO/2022/075712
Kind Code:
A1
Abstract:
A battery pack according to an embodiment of the present invention is a battery pack comprising at least one battery cell, a main relay provided in a charging/discharging path of the battery cell, and a pre-charge relay and a pre-charge resistor which are connected to the main relay in parallel in the charging/discharging path, and comprises: a connector part configured to enable a load including a capacitor to be connected thereto; a communication part configured to receive, when the load is connected to the connector part, capacitance of the capacitor from the load through the connector part; and a control part configured to obtain the capacitance from the communication part, calculate a duty ratio corresponding to the capacitance, and control an operational state of the pre-charge relay according to the calculated duty ratio so as to pre-charge the capacitor.
Inventors:
PARK MI-SO (KR)
Application Number:
PCT/KR2021/013638
Publication Date:
April 14, 2022
Filing Date:
October 05, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H02J7/00; H01M10/42; H02J7/34
Foreign References:
| KR20190073925A | 2019-06-27 | |||
| JP2005295697A | 2005-10-20 | |||
| JP2013179760A | 2013-09-09 | |||
| KR20180113856A | 2018-10-17 | |||
| US20140028088A1 | 2014-01-30 | |||
| KR20200128999A | 2020-11-17 |
Other References:
See also references of EP 4156445A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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