IP Library › Granted Patent US 12,646,951
Granted Patent B2
US 12,646,951 · App. 17/932,963 · Granted Jun 2, 2026

Intelligent battery cell

Inventor: Markus Ekström (Gothenburg, SE)
Assignee: Volvo Car Corporation
H02J7/50H01M10/4257H01M50/209H01M50/51H01M2220/20H02P27/06
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Quick Facts
Patent No.
US 12,646,951
App. No.
17/932,963
Filed
Sep 16, 2022
Granted
Jun 2, 2026
Kind
B2
Art Unit
2837
USPC
318/400.29
Abstract

A device that comprises active battery cell material, an internal circuit coupled to the active battery cell material, a circuit board; two alternating current (AC) power points; two isolated direct current (DC) power points, and a controller that can operate one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode.

Claims (42)

1 . A device, comprising:

active battery cell material; and

an internal circuit coupled to the active battery cell material and comprising:

a circuit board;

two alternating current (AC) power points;

two isolated direct current (DC) power points; and

a controller that operates one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode,

wherein a busbar provides a second series connection between the device and at least a second device, and wherein the busbar runs between respective AC power points on the device and the at least the second device to form a string of devices.

2 . The device of claim 1 , wherein the device comprises one or more smart battery cells such that the H-bridge circuit provides a first series connection between at least two smart battery cells of the one or more smart battery cells, and wherein the H-bridge circuit provides AC capabilities to the device.

3 . The device of claim 1 , wherein the string of devices produces a sine wave current such that sine wave currents from three individual strings of devices are used to produce a 3-phase sine wave current that controls an electric motor connected to the three individual strings of devices.

4 . The device of claim 1 , wherein one or more secondary nodes are respectively mounted on one or more devices such that a primary node controls the one or more secondary nodes via radio control, to produce a desired 3-phase sine wave current.

5 . The device of claim 4 , wherein the primary node enables the device to disconnect from a main battery in a bypass mode, such that performance of the main battery is unaffected.

6 . The device of claim 4 , wherein the primary node enables a string of devices comprising at least the device to produce a positive voltage for controlling an electric motor.

7 . The device of claim 4 , wherein the primary node enables a string of devices comprising at least the device to produce a negative voltage for controlling an electric motor.

8 . A device, comprising:

active battery cell material; and

an internal circuit coupled to the active battery cell material and comprising:

a circuit board;

two alternating current (AC) power points;

two isolated direct current (DC) power points; and

a controller that operates one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode,

wherein one or more secondary nodes are respectively mounted on one or more devices such that a primary node controls the one or more secondary nodes via radio control, to produce a desired 3-phase sine wave current.

9 . The device of claim 8 , wherein the device comprises one or more smart battery cells such that the H-bridge circuit provides a first series connection between at least two smart battery cells of the one or more smart battery cells, and wherein the H-bridge circuit provides AC capabilities to the device.

10 . The device of claim 8 , wherein a busbar provides a second series connection between the device and at least a second device, and wherein the busbar runs between respective AC power points on the device and the at least the second device to form a string of devices.

11 . The device of claim 10 , wherein the string of devices produces a sine wave current such that sine wave currents from three individual strings of devices are used to produce a 3-phase sine wave current that controls an electric motor connected to the three individual strings of devices.

12 . The device of claim 8 , wherein the primary node enables the device to disconnect from a main battery in a bypass mode, such that performance of the main battery is unaffected.

13 . The device of claim 8 , wherein the primary node enables a string of devices comprising at least the device to produce a positive voltage for controlling an electric motor.

14 . The device of claim 8 , wherein the primary node enables a string of devices comprising at least the device to produce a negative voltage for controlling an electric motor.

15 . A smart cell system, comprising:

a device, comprising active battery cell material; and

an internal circuit coupled to the active battery cell material and comprising:

a circuit board;

two alternating current (AC) power points;

two isolated direct current (DC) power points; and

a controller that operates one or more switches on an H-bridge circuit to disconnect the device from a main battery in a bypass mode,

wherein a busbar provides a second series connection between the module and at least a second module, and wherein the busbar runs between respective AC power points on the device and the at least the second device to form a string of devices.

16 . The smart cell system of claim 15 , wherein the device comprises one or more smart battery cells such that the H-bridge circuit provides a first series connection between at least two smart battery cells of the one or more smart battery cells, and wherein the H-bridge circuit provides AC capabilities to the device.

17 . The smart cell system of claim 15 , wherein the string of devices produces a sine wave current such that sine wave currents from three individual strings of devices are used to produce a 3-phase sine wave current that controls an electric motor connected to the three individual strings of devices.

18 . The smart cell system of claim 15 , wherein one or more secondary nodes are respectively mounted on one or more devices such that a primary node controls the one or more secondary nodes via radio control, to produce a desired 3-phase sine wave current.

19 . The smart cell system of claim 18 , wherein the primary node enables the device to disconnect from a main battery in a bypass mode, such that performance of the main battery is unaffected.

20 . The smart cell system of claim 18 , wherein the primary node enables a string of devices comprising at least the device to produce a positive voltage for controlling an electric motor.

21 . The smart cell system of claim 18 , wherein the primary node enables a string of devices comprising at least the device to produce a negative voltage for controlling an electric motor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 31, 2022
From: EKSTRÖM, MARKUS
To: VOLVO CAR CORPORATION
Reel/Frame 061600/0548 →
Continuity (2)
Provisional Application 63246483 · Sep 21, 2021
Related Publication 20230087469A1 · Mar 23, 2023
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