ENERGY STORAGE CELL FOR A MULTI-CELL ENERGY STORAGE DEVICE

• US 20140042957A1
• Filed: 07/10/2013
• Published: 02/13/2014
• Est. Priority Date: 08/08/2012
• Status: Active Grant

• Current Assignee: Datang NXP Semiconductors Company Limited (Datang Telecom Technology Company Limited)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: AL-KADI, Ghiath, LAMMERS, Matheus Johannus Gerardus
• Granted Patent: US 9,209,477 B2
• Time in Patent Office: Days
• US Class Current: 320/103
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60L 58/22 Balancing the charge of battery modules
• CPC Class Codes: G01R 31/396 Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• CPC Class Codes: H01M 10/04 Construction or manufacture in general H01M10/058, H01M10/12, H01M10/28, H01M10/38 take precedence
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/482 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0016 using shunting, discharge or bypass circuits
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

An energy storage cell for a multi-cell energy storage device is disclosed. The energy storage cell comprises a cell information storage device adapted to store cell information regarding the energy storage cell.

Claims

1. An energy storage cell for a multi-cell energy storage device, the energy storage cell comprising a cell information storage device adapted to store cell information regarding the energy storage cell.

2. The energy storage cell of claim 1, wherein the cell information storage device comprises an integrated circuit connected in parallel with the energy storage cell.

3. The energy storage cell of claim 2, wherein the integrated circuit comprises:

an integrated circuit core comprising positive and negative voltage supply input terminals, a data input terminal, and a control output terminal;

a low pass filter connected between the positive and negative voltage supply input terminals;

a high pass filter connected between the data input terminal and the negative voltage supply input terminal; and

a switch connected between the positive and negative voltage supply input terminals,

wherein the control output terminal of the integrated circuit core is connected to the control terminal of the switch core so as to control operation of the switch.

4. The energy storage cell of claim 2, wherein the integrated circuit comprises:

an integrated circuit core comprising positive and negative voltage supply input terminals, first and second data input terminals, and a control output terminal;

a low pass filter connected between the positive and negative voltage supply input terminals;

a high pass filter connected between the first data input terminal and the negative supply input terminal;

a low pass filter connected between the second data input terminal and the negative voltage supply input terminal; and

a switch connected between the positive and negative voltage supply input terminals,

wherein the control output terminal of the integrated circuit core is connected to the control terminal of the switch core so as to control operation of the switch.

5. The energy storage cell of claim 4, wherein the integrated circuit core is configured to generate a switch control signal for outputting via the control output terminal based on signals present at the first and second data input terminals.

6. The energy storage cell of claim 1, wherein the cell information storage device (30) is inductively decoupled from the energy storage cell.

7. The energy storage cell of claim 1, wherein the cell information comprises information relating to at least one of:

cell voltage;

a temperature of the energy storage cell;

a state of charge of the energy storage cell;

a state of health of the energy storage cell; and

a state of function of the energy storage cell.

8. A multi-cell energy storage device comprising a plurality of energy storage cells according to claim 1.

9. A multi-cell energy storage device according to claim 8, further comprising a controller configured to:

identify at least one energy storage cell from which charge is to be removed; and

transfer energy from the identified at least one cell to another at least one cell.

10. An electric vehicle battery cell pack comprising at least one multi-cell energy storage device as claimed in claim 8.

11. An electric vehicle comprising an electric battery pack comprising at least one multi-cell energy storage device as claimed in claim 8.

12. A hybrid vehicle comprising an electric battery pack comprising at least one multi-cell energy storage device as claimed in claim 8.