US Patent Application No: 2010/0052,617

Number of patents in Portfolio can not be more than 2000

Degradation determination method for lithium-ion battery, control method for lithium-ion battery, degradation determination apparatus for lithium-ion battery, control apparatus for lithium-ion battery, and vehicle

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Abstract

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A degradation state of a lithium-ion battery is determined on the basis of information about a voltage change in the lithium-ion battery obtained in a diagnosis mode in which the lithium-ion battery is successively charged and discharged at a constant power value. The constant power value in the diagnosis mode preferably may vary with the power storage amount and the temperature of the lithium-ion battery. As the information, the degree of a voltage drop in the lithium-ion battery obtained during the discharge can be used.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DENSO CORPORATIONKARIYA-CITY AICHI-PREF9296

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aridome, Koji Toyota, JP 13 29
Kuroda, Daisuke Kariya, JP 63 116
Matsumoto, Junichi Yokohama, JP 214 2233

Cited Art Landscape

Patent Info (Count) # Cites Year
 
NISSAN MOTOR CO., LTD. (3)
* 6,072,300 Battery state diagnostic apparatus for battery set and battery module charger/discharger 152 1998
* 6,127,806 State of charge indicator 23 1999
* 2007/0013,347 Battery pack controller 9 2006
 
PANASONIC EV ENERGY CO., LTD. (3)
* 2007/0120,537 CONTROLLER FOR RECHARGEABLE BATTERY AND TEMPERATURE ESTIMATION METHOD AND DETERIORATION DETERMINATION METHOD FOR RECHARGEABLE BATTERY 5 2006
* 2007/0126,404 DEVICE AND METHOD FOR CONTROLLING OUTPUT FROM A RECHARGEABLE BATTERY 0 2006
* 2007/0205,746 System for controlling charge/discharge of secondary battery, battery controller, and computer-readable medium 2 2007
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
* 6,480,003 Method for detecting deterioration of electrochemical device, method for measuring remaining capacity, charger comprising them, and discharge controller 10 2001
* 7,248,023 Charger for lithium secondary battery and electronic apparatus including charger 9 2005
 
SANYO ELECTRIC CO., LTD. (2)
* 7,071,698 Power supply apparatus for detecting battery voltage and the portions of faults 6 2005
* 7,403,016 Car power source apparatus 4 2005
 
Enrev Power Solutions, Inc. (1)
* 2002/0075,003 Adaptive battery charging based on battery condition 10 2001
 
FDK CORPORATION (1)
* 6,639,386 Rechargeable battery device equipped with life determination function 9 2002
 
HITACHI, LTD. (1)
* 2006/0035,116 Equipment with a built-in fuel cell 5 2005
 
KABUSHIKI KAISHA TOSHIBA (1)
* 2009/0208,821 BATTERY SYSTEM 7 2006
 
TOSHIBA BATTERY CO., LTD. (1)
* 6,448,743 Rechargeable battery pack 10 2001
 
Other [Check patent profile for assignment information] (1)
* 2009/0169,987 BATTERY APPARATUS FOR CONTROLLING PLURAL BATTERIES AND CONTROL METHOD OF PLURAL BATTERIES 2 2008
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
8,823,325 Method for checking and modulating battery capacity and power based on discharging/charging characteristics 0 2011
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (1)
8,907,674 System and method for determining degradation of rechargeable lithium ion battery 0 2011
* Cited By Examiner