About 25 results
https://drivepatents.com/patents/974290 · 4 Jun 2014
A safety valve 13 is integrally formed in a battery lid 3 together with a peripheral wall portion 14 by press and the like. The safety valve 13 is formed in contact with the peripheral wall portion 14, at the bottom portion of the depressed portion 18 depr...
https://drivepatents.com/patents/975324 · 7 May 2014
Provided is a lithium ion secondary battery capable of realizing a high energy density while maintaining output. A lithium ion secondary battery D1 according to the present invention includes an electrode having an active material mix layer 31 on both surf...
https://drivepatents.com/patents/976176 · 16 Apr 2014
A battery control apparatus which can calculate a state of charge of a battery with high accuracy is provided. The battery control apparatus of the invention determines whether or not an open circuit voltage of a battery cell is within a high sensitivity r...
https://drivepatents.com/patents/976117 · 16 Apr 2014
A battery control device capable of carrying out current limitation in consideration of constraints on other components than a battery main body is provided. A battery control device according to the invention has an average current table describing an ave...
https://drivepatents.com/patents/976546 · 9 Apr 2014
To satisfactorily carry out balancing even when balancing control is suspended. It is selected according to a condition which of battery cell information (old state information) by the last balancing stored in a storage device and battery cell information ...
https://drivepatents.com/patents/977045 · 26 Mar 2014
An electricity storage device comprises a plurality of electricity storage cells, a casing which stores the electricity storage cells, a plurality of conductive members for electrically connecting the electricity storage cells together, a control device wh...
https://drivepatents.com/patents/976987 · 26 Mar 2014
A battery control apparatus is provided which can keep an inter-terminal voltage of each single cell within a permitted range while permitted power is controlled in units of a battery pack. The battery control apparatus of the invention restricts the permi...
https://drivepatents.com/patents/977977 · 26 Feb 2014
Disclosed herein is a battery state estimation system 110 which estimates a state of charge of a chargeable battery 400. The battery state estimation system 110 comprises: an SOCv computing unit 111 which calculates a state of charge of the battery 400 usi...
https://drivepatents.com/patents/978339 · 19 Feb 2014
A cell block 40 of the present invention includes holding sections 124, 134, 136, 144 that tuck a battery cell arrayed body 103L of the lower layer between a lower holding frame member 121 and a middle holding frame member 131, tuck a battery cell arrayed ...
https://drivepatents.com/patents/978291 · 19 Feb 2014
A secondary battery module 1 of the present invention stores cell blocks 40 in a module case 2, and cools battery cells 101 in the cell blocks 40 by circulating coolant to the inside of the cell blocks by introduction of the coolant into the module case 2....