Title:
BATTERY CHARGING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/092343
Kind Code:
A1
Abstract:
A battery charging method is provided. In the method, a battery is charged with
constant current. When the battery voltage reaches a charge critical voltage,
the constant current charge is ended, wherein the charge critical voltage is
lower than the limited charge voltage. Then constant voltage charge with the
charge critical voltage is carried out. When the charge current reaches a charge
end current, the constant voltage charge is ended. A battery charging device
is also provided. Using the provided battery charging method and device, the
life of the battery can be extended and the safety of the battery can be improved.
Inventors:
ZHANG LIYUAN (CN)
QIN ZHEN (CN)
LI HAI (CN)
LUO GUANG (CN)
BI GUANGCHUN (CN)
DU JIAXING (CN)
QIN ZHEN (CN)
LI HAI (CN)
LUO GUANG (CN)
BI GUANGCHUN (CN)
DU JIAXING (CN)
Application Number:
PCT/CN2007/070619
Publication Date:
August 07, 2008
Filing Date:
September 04, 2007
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
ZHANG LIYUAN (CN)
QIN ZHEN (CN)
LI HAI (CN)
LUO GUANG (CN)
BI GUANGCHUN (CN)
DU JIAXING (CN)
ZHANG LIYUAN (CN)
QIN ZHEN (CN)
LI HAI (CN)
LUO GUANG (CN)
BI GUANGCHUN (CN)
DU JIAXING (CN)
International Classes:
H01M10/44; H01J7/00
Foreign References:
| EP1246336A2 | 2002-10-02 | |||
| JP2000166102A | 2000-06-16 | |||
| JPH0114549A | ||||
| JP2005086849A | 2005-03-31 | |||
| CN1858963A | 2006-11-08 |
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (No. 1 Zhichun Road Haidian District, Beijing 3, CN)
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