About 29 results
https://drivepatents.com/patents/990039 · 5 Jun 2013
Provided is a lithium ion positive electrode active material for a secondary battery that can realize a high operating voltage and a high capacity while suppressing capacity drop with cycles by using a low-cost material. A positive electrode active materia...
https://drivepatents.com/patents/990009 · 5 Jun 2013
Provided is a lithium ion secondary battery which is low in capacity drop of the battery during fast-charge and has high energy density. In the present lithium ion secondary battery, the positive electrode contains a lithium nickel manganese oxide represen...
https://drivepatents.com/patents/990826 · 15 May 2013
An average current value that is the average value of current values is found by connecting a detection resistor in parallel to two terminals that are the object of measurement, measuring the current value that flows in the detection resistor, and subjecti...
https://drivepatents.com/patents/991302 · 1 May 2013
A lithium ion secondary battery which meets the requirement [1] of satisfying the formulae (a) to (c) or the requirement [2] of satisfying the formulae (b), (d), and (e): (a) 5 ≤ A ≤ 25, (b) 10 ≤ B ≤ 60, (c) 40 ≤ 2A + B ≤ 90, (d) 0.2 ≤ C ≤ ...
https://drivepatents.com/patents/985031 · 24 Apr 2013
There is provided a nonaqueous electrolyte secondary battery having high capacity in which the reduction in the capacity of the battery due to the irreversible capacity in the first charge and discharge is suppressed using a high capacity positive electrod...
https://drivepatents.com/patents/993231 · 6 Feb 2013
A nonaqueous electrolyte secondary battery according to a present exemplary embodiment comprises an electrode element including a positive electrode and a negative electrode arranged to face each other, a nonaqueous electrolyte and a jacket housing the ele...
https://drivepatents.com/patents/993670 · 23 Jan 2013
There is provided a lithium ion secondary battery excellent in cycle characteristics in which the conductivity of an electrode using a graphite material which is less deformed and oriented by pressurization is improved. A negative electrode mixture which i...
https://drivepatents.com/patents/994725 · 26 Dec 2012
There is provided a polymer secondary battery using silicon and silicon oxide as a negative electrode active material that shows a high capacity retention rate also when a charge and discharge cycle is repeated. A polymer secondary battery including a posi...
https://drivepatents.com/patents/995025 · 19 Dec 2012
A nonaqueous electrolyte secondary battery comprising positive and negative electrodes capable of absorbing and desorbing lithium ions; a nonaqueous electrolytic solution; and a separator provided between the positive electrode and the negative electrode. ...
https://drivepatents.com/patents/994946 · 19 Dec 2012
The exemplary embodiment has an object to provide a nonaqueous electrolyte solution having a flame retardancy over a long period and having a good capacity maintenance rate. The exemplary embodiment is a nonaqueous electrolyte solution containing a lithium...