Rechargeable energy storage system with different cell chemistries

Patent metadata

Field	Value
Publication number	US-2021043894-A1
Application number	US-201916536904-A
Country	US
Kind code	A1
Filing date	Aug 9, 2019
Priority date	Aug 9, 2019
Publication date	Feb 11, 2021
Grant date	—

Abstract

A rechargeable energy storage system includes a battery pack and a battery controller. The battery pack has a voltage current temperature module and multiple battery modules. Respective battery modules have multiple battery cells and are operable to store a module identifier that encodes at least one parameter of the battery cells, receive a configuration request from the voltage current temperature module, and transfer the module identifier to the voltage current temperature module in response to the configuration request. The battery controller is in communication with the voltage current temperature module and is operable to send a status request to the voltage current temperature module, receive the plurality of module identifiers from the voltage current temperature module in response to the status request, and compare the module identifiers to determine either a match or at least one mismatch among the module identifiers of the battery modules.

First claim

What is claimed is:

1 . A rechargeable energy storage system comprising:
a battery pack having a voltage current temperature module, and a plurality of battery modules, wherein respective ones of the plurality of battery modules have a plurality of battery cells, and are operable to:
store a module identifier that encodes at least one parameter of the plurality of battery cells;
receive a configuration request from the voltage current temperature module; and
transfer the module identifier to the voltage current temperature module in response to the configuration request; and
a battery controller in communication with the voltage current temperature module, and operable to:
send a status request to the voltage current temperature module;
receive the plurality of module identifiers from the voltage current temperature module in response to the status request; and
compare the plurality of module identifiers to determine either a match or at least one mismatch among the plurality of parameters of the plurality of battery modules.

2 . The rechargeable energy storage system according to claim 1 , wherein the respective ones of the plurality of battery modules include an interconnect circuit board electrically coupled to the plurality of battery cells, and operable to store the module identifier.

3 . The rechargeable energy storage system according to claim 1 , wherein the at least one parameter indicates a cell chemistry of the plurality of battery cells in a corresponding one of the plurality of battery modules.

4 . The rechargeable energy storage system according to claim 1 , wherein the at least one parameter indicates a module configuration of the plurality of battery cells in a corresponding one of the plurality of battery modules.

5 . The rechargeable energy storage system according to claim 1 , wherein the battery controller is further operable to:
disable one or more of a charging and a discharging of the battery pack in response to the plurality of module identifiers indicating the at least one mismatch among the plurality of parameters of the plurality of battery modules; and set a flag that requests resolution of the at least one mismatch.

6 . The rechargeable energy storage system according to claim 1 , wherein the battery controller is further operable to automatically adjust a pack charging profile of the battery pack in response to the plurality of module identifiers indicating the at least one mismatch among the plurality of parameters of the plurality of battery modules.

7 . The rechargeable energy storage system according to claim 6 , wherein the pack charging profile is a minimum charging profile based on a slowest module charging profile of at least one of the plurality of battery modules.

8 . The rechargeable energy storage system according to claim 6 , wherein the pack charging profile is a blended pack charging profile that provides a weighted average of a plurality of module charging profiles of the plurality of battery modules.

9 . The rechargeable energy storage system according to claim 1 , wherein the battery pack and the battery controller are mountable in a vehicle.

10 . A method for verifying installation of a battery module in a battery pack, the method comprising:
storing a module identifier in the battery module, wherein the module identifier encodes at least one parameter of a plurality of battery cells in the battery module; receiving a configuration request at the battery module from a voltage current temperature module of the battery pack; transferring the module identifier from the battery module to the voltage current temperature module in response to the configuration request; and comparing the module identifier of the battery module with a plurality of additional module identifiers of a plurality of additional battery modules in the battery pack to determine either a match or at least one mismatch of the module identifier of the battery module with the plurality of additional module identifiers of the plurality of additional battery modules.

11 . The method according to claim 10 , further comprising:
electrically coupling an interconnect circuit board of the battery module with the plurality of battery cells, wherein the module identifier is stored in the interconnect circuit board.

12 . The method according to claim 10 , wherein the at least one parameter indicates a cell chemistry of the plurality of battery cells in the battery module.

13 . The method according to claim 10 , wherein the at least one parameter indicates a module configuration of the plurality of battery cells in the battery module.

14 . The method according to claim 13 , wherein the module configuration is an operational life of the plurality of battery cells.

15 . The method according to claim 10 , further comprising:
disabling one or more of a charging and a discharging of the battery pack in response to the module identifier and the plurality of additional module identifiers indicating the at least one mismatch; and setting a flag that requests resolution of the at least one mismatch.

16 . The method according to claim 10 , further comprising:
automatically adjusting one or more of a pack charging profile and a pack discharging profile of the battery pack in response to the module identifier and the plurality of additional module identifiers indicating the at least one mismatch.

17 . A battery pack comprising:
a plurality of battery modules; and a voltage current temperature module connected to the plurality of battery modules, wherein respective ones of the plurality of battery modules include:
a plurality of battery cells; and
an interconnect circuit board electrically coupled to the plurality of battery cells, in communication with the voltage current temperature module, and operable to:
store a module identifier that encodes at least one parameter of the plurality of battery cells;
receive a configuration request from the voltage current temperature module; and
transfer the module identifier via to the voltage current temperature module in response to the configuration request, wherein the plurality of module identifiers of the plurality of battery modules are suitable to determine either a match or at least one mismatch among the plurality of module identifiers of the plurality of battery modules.

18 . The battery pack according to claim 17 , wherein the at least one parameter indicates a cell chemistry of the plurality of battery cells.

19 . The battery pack according to claim 17 , wherein the at least one parameter indicates a module configuration of the plurality of battery cells.

20 . The battery pack according to claim 19 , wherein the module configuration of the plurality of battery cells is an operational life of the plurality of battery cells.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Cornelli Andrew J
• Prociw Philip J
• Dorgan Karl C
• Baughman Andrew C
• Bunce Steven J
• Davis Steven M

Classifications

• H02J7/977

  of the battery · CPC title

• H02J7/445

  in response to measured battery parameters, e.g. voltage, current or temperature profile · CPC title

• H02J7/94

  in response to battery current · CPC title

• H02J7/80

  including monitoring or indicating arrangements · CPC title

• H01M50/20 Primary

  Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders (structural combination of accumulators with charging apparatus H01M10/46) · CPC title