Intelligent battery and method

Patent metadata

Field	Value
Publication number	US-11081733-B2
Application number	US-201715429223-A
Country	US
Kind code	B2
Filing date	Feb 10, 2017
Priority date	Dec 31, 2015
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

An intelligent battery system and methods for making and using the same are provided. The intelligent battery system can halve a pack of cells and a battery management system. (“BMS”) for providing secondary protection for the pack of cells. The pack of cells can comprise cells with operating parameters such as capacities, voltages, currents, charge/discharge rates and/or lifecycles that are uniform, or different, among the cells. The BMS can comprise a gas gauge, a microcontroller and a MOS switch circuit for managing the pack of cells and providing the secondary protection based on chemical characteristics of the cells and operating parameters of the cells. The intelligent battery system advantageously can include cells that are replaceable. For purposes of storage and/or transportation an of the cells can be dissembled and assembled without affecting the capacity and performance of the intelligent battery.

First claim

What is claimed is:

1. A battery management system (“BMS”), comprising:
a metal-oxide-semiconductor (“MOS”) switch circuit;
a connection board coupled with each of a pack of cells, the MOS switch circuit being configured to, through the connection board, switch on/off each of the pack of cells; and
one or more processors, individually or collectively, configured to:
obtain at least one property of the pack of cells;
update at least one controlling parameter of the BMS, based on the property, for protecting the pack of cells; and
in response to the updated at least one controlling parameter, control the MOS switch circuit to switch on/off at least one selected cell of the cells to form a first portion of the cells in a parallel connection and/or a second portion of the cells in a serial connection to obtain at least one of a desired capacity, a desired charge rate, a desired discharge rate, a desired voltage system, or a desired lifecycle of the pack of cells.

2. An intelligent battery, comprising:
a pack of cells; and
a battery management system (“BMS”) including a metal-oxide-semiconductor (“MOS”) switch circuit and a connection board;
wherein:
the connection board is configured to couple with each of the pack of cells to enable the BMS to obtain at least one property of the pack of cells and the BMS is configured to update at least one controlling parameter of the BMS based on the property of the cells; and
the MOS switch circuit is configured to, through the connection board, switch on/off each of the pack of cells and in response to the updated at least one controlling parameter, the MOS switch circuit is further configured to switch on/off at least one selected cell of the cells to form a first portion of the cells in a parallel connection and/or a second portion of the cells in a serial connection to obtain at least one of a desired capacity, a desired charge rate, a desired discharge rate, a desired voltage system, or a desired lifecycle of the pack of cells.

3. The intelligent battery of claim 2 , wherein the pack of cells provides primary battery protection for the cells, and wherein the BMS provides secondary protection for the cells.

4. The intelligent battery of claim 2 , wherein the BMS is adapted to releasably couple with the pack of cells.

5. The intelligent battery of claim 4 , further comprising at least one first storage device for storing a plurality of predetermined properties of the pack of cells.

6. The intelligent battery of claim 5 , further comprising one or more processors that are configured to recognize a type of each of the cells and elect the predetermined properties based on the type.

7. The intelligent battery of claim 4 , wherein each of the cells comprises a second storage device configured to store the property of the cell.

8. The intelligent battery of claim 6 , wherein each of the processors is configured to obtain the property of the cell when the processor is coupled with the cell.

9. The intelligent battery of claim 2 , further comprising:
an interface for communicating with the BMS and comprising one or more cooperating terminals for releasably coupling the BMS with the pack of cells.

10. The intelligent battery of claim 2 , wherein at least one of the cells is replaceable.

11. The intelligent battery of claim 10 , wherein each of the cells is replaceable.

12. The intelligent battery of claims 2 , wherein at least one of the cells is detachable from the BMS.

13. The intelligent battery of claim 12 , wherein each of the cells is detachable from the BMS.

14. The intelligent battery of claim 13 , wherein each of the cells is detachable by unplugging the relevant cell from the BMS.

15. A method for manufacturing an intelligent battery, comprising:
configuring a battery management system (“BMS”) to obtain at least one property of a pack of cells through a connection board coupled with each of the pack of cells, and update at least one controlling parameter of the BMS based on the property of the cells,
wherein:
the BMS includes a metal-oxide-semiconductor (“MOS”) switch circuit and the connection board, and

the MOS switch circuit is configured to, through the connection board, switch on/off each of the pack of cells; and
in response to the updated at least one controlling parameter, controlling the MOS switch circuit to switch on/off at least one selected cell of the cells to form a first portion of the cells in a parallel connection and/or a second portion of the cells in a serial connection to obtain at least one of a desired capacity, a desired charge rate, a desired discharge rate, a desired voltage system, or a desired lifecycle of the pack of cells.

16. The method of claim 15 , further comprising:
activating the intelligent battery through a learning process.

17. The method of claim 15 , further comprising:
reconfiguring the BMS when one or more of the cells are replaced or a number of the cells is changed.

18. The method of claim 15 , further comprising:
changing at least one of a chemical characteristic of the pack of cells, a number of the cells, a type of the cells, an electrical connection between the cells, or a status of the cells.

19. The method of claim 15 , further comprising:
updating at least one of a battery parameter, a protection parameter, a voltage level, a current level, a power level, a lifecycle, or a temperature level.

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Wang Lei
• Wang Wentao
• Zheng Dayang
• Xu Bogao
• Luo Hao

Classifications

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/269

  Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring (methods or arrangements for servicing or maintenance H01M6/50, H01M10/42) · CPC title

• H01M50/284

  with incorporated circuit boards, e.g. printed circuit boards [PCB] · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M10/425

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title