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1. (WO2018219029) COMBINED STARTING POWER SUPPLY

Pub. No.:    WO/2018/219029    International Application No.:    PCT/CN2018/080377
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sun Mar 25 00:59:59 CET 2018
IPC: H02J 7/00
H02J 7/18
B60L 11/18
Applicants: GUANGZHOU KAIJIE POWER SUPPLY INDUSTRIAL CO. LTD.
广州市凯捷电源实业有限公司
Inventors: CHEN, Ronghua
陈荣华
WANG, Dexi
王德喜
Title: COMBINED STARTING POWER SUPPLY
Abstract:
Disclosed are a combined starting power supply, comprising a lead-acid battery, a lithium battery, and a lithium battery protection circuit. The lithium battery protection circuit comprises a first input end, a second input end, a first output end, and a second output end. The negative electrode of the lithium battery is connected to the first input end. The positive electrode of the lithium battery is connected to the second input end. The negative electrode of the lead-acid battery is connected to the first output end. The positive electrode of the lead-acid battery is connected to the second output end. The combined starting power supply of the present invention increases the safeness thereof by employing the lithium battery; the lithium-ion battery is always kept in a safe working state by the lithium battery protection circuit during charging and discharging processes. The present invention aims to complement the shortcoming of a low specific energy ratio of a lead-acid rechargeable battery and to provide various transports with a compact and lightweight starting power supply capable of providing an ultrahigh power output, thus meeting the working requirement of instantaneously starting transports such as a vehicle and extending the service life of the batteries at the same time.