About 33 results
https://drivepatents.com/patents/976293 · 16 Apr 2014
The present invention relates to a charge equalization apparatus, which can enable the primary windings (N1) and the secondary windings (N2) of transformers (T1,..Tn) to be easily manufactured, can control the flow of charges into batteries (B1,...Bn) depe...
https://drivepatents.com/patents/986741 · 18 Sep 2013
The present invention relates to a battery module case, and more particularly, to a battery module case in which sub-battery modules are slidably mounted in a vertical or horizontal direction, wherein each sub-battery module comprises one or more battery c...
https://drivepatents.com/patents/987849 · 7 Aug 2013
Provided is a high-capacity positive electrode active material, and more particularly, a high-capacity positive electrode active material for a lithium secondary battery containing a composite oxide of the following Chemical Formula 1. €ƒ€ƒ€ƒ€ƒ...
https://drivepatents.com/patents/988705 · 17 Jul 2013
Provided is a method for preparing a positive electrode active material for a lithium secondary battery, the method comprising: mixing and reacting a nickel source, a cobalt source, and an aluminum source, ammonia water, sucrose, and a pH adjusting agent t...
https://drivepatents.com/patents/988703 · 17 Jul 2013
The present invention relates to a positive electrode active material for a lithium secondary battery having improved thermal stability, a method for producing the positive electrode active material, and a lithium secondary battery containing the same. The...
https://drivepatents.com/patents/988851 · 10 Jul 2013
Provided are a microporous polyolefin film usable as a separator for a lithium ion secondary battery and a method for preparing the same, the microporous polyolefin film including one or more layers, wherein the microporous polyolefin has a thickness of 5-...
https://drivepatents.com/patents/990190 · 29 May 2013
Provided are an apparatus and a method for estimating internal resistance of a battery pack. The apparatus includes: a voltage sensing unit that measures a voltage value of the battery pack; a current sensing unit that measures a current value of the batte...
https://drivepatents.com/patents/993285 · 30 Jan 2013
Provided is a grounding structure of a high voltage secondary battery (10) for a vehicle capable of securing stable ground potential of various electric devices included in the vehicle and reducing a risk factor that may be generated due to a potential dif...
https://drivepatents.com/patents/994889 · 19 Dec 2012
Provided are a pouch type secondary battery capable of preventing corrosion of a metal layer due to exposure of the metal layer to the outside at a distal end of a case thereof, and a method for manufacturing the same.
https://drivepatents.com/patents/999448 · 15 Aug 2012
The present invention relates to an electrode assembly in which a positive electrode plate and a negative electrode plate are alternately laminated into a layer in one or two directions with a separator interposed therebetween. The present invention also r...