About 40 results
https://drivepatents.com/patents/990946 · 8 May 2013
An energy storage system is described that is connectable to at least one of a power generating system, a grid and a load, the energy storage system including a battery system, wherein the battery system comprises a plurality of battery cells, a cell balan...
https://drivepatents.com/patents/993551 · 23 Jan 2013
A charge and discharge control apparatus equalizes the voltages of rechargeable battery cells by using a charger or a capacitor charged by an external power source, by using a first cell balancing unit which charges the rechargeable battery cells until the...
https://drivepatents.com/patents/997848 · 26 Sep 2012
The device has switching circuits (20, 22) connected with respective lithium-ion-cells (10, 11) and comprising respective switching elements (26, 34) i.e. transistors, and coils (32). A repeater (30) i.e. iron core, is inductively coupled with the coils, w...
https://drivepatents.com/patents/1003059 · 25 Apr 2012
A battery and a method of operating a battery are provided. The battery comprises at least one battery module. Each battery module comprises a plurality of submodules electrically connected in series. Each submodule comprises a first and a second submodule...
https://drivepatents.com/patents/1007354 · 7 Dec 2011
An arrangement which comprises two or more energy storage units (1) for electrical energy connected in series, two or more balancing resistor units (2), each balancing resistor unit (2) connected in parallel with one of the energy storage units (1), means ...
https://drivepatents.com/patents/1009031 · 5 Oct 2011
A balancing system for a battery pack includes a first balancing stage and a second balancing stage. The battery pack includes multiple modules and each of the modules in the battery pack includes a subset of the cells. The first balancing stage can balanc...
https://drivepatents.com/patents/1011708 · 22 Jun 2011
A power supply device is provided that includes a battery pack 10, and forcedly discharging circuits 20. The battery pack 10 includes serially-connected rechargeable battery cells 2. The forcedly discharging circuits 20 are connected to the battery cells 2...
https://drivepatents.com/patents/1012419 · 1 Jun 2011
An SOC of each battery cell is periodically detected, and an SOCmin and an SOCmax are determined. Battery cells having the SOCs larger than SOCmin+± are selectively discharged. After an elapse of a preset equalization processing time period, discharge of ...
https://drivepatents.com/patents/1013079 · 11 May 2011
Provided is an electric energy storage module control device for controlling an electric energy storage module (2) including a plurality of capacitors (20) connected in series, the electric energy storage module control device including a voltage control c...
https://drivepatents.com/patents/1013654 · 20 Apr 2011
The invention is directed to a system for balancing a series connection of energy storage devices comprising an intermediate storage element (b) and a switching means (c) for coupling a pair of non-adjacent sections (d) of one or a number of adjacent energ...