IP Library › Granted Patent US 12,176,510
Granted Patent B2
US 12,176,510 · App. 17/542,974 · Granted Dec 24, 2024

Bipolar capacitor assisted battery

Inventors: Jingyuan Liu (Shanghai, CN); Dewen Kong (Shanghai, CN); Zhe Li (Shanghai, CN); Meiyuan Wu (Shanghai, CN); Haijing Liu (Shanghai, CN)
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
H01M16/00H01G11/08H01G11/28H01G11/52H01G11/56H01G11/58H01M10/0525H01M50/51
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Quick Facts
Patent No.
US 12,176,510
App. No.
17/542,974
Granted
Dec 24, 2024
Kind
B2
Abstract

A bipolar capacitor assisted battery includes a bipolar capacitor including a first capacitor, and a second capacitor. The second capacitor is connected in series with the first capacitor. A lithium ion battery is connected in parallel to the bipolar capacitor.

Claims (43)

1. A bipolar capacitor assisted battery, comprising:

a bipolar capacitor including:

a first positive terminal;

a first capacitor connected to the first positive terminal;

a second capacitor; and

a first negative terminal connected to the second capacitor,

wherein the second capacitor is connected in series with the first capacitor; and

a lithium ion battery connected in parallel to the bipolar capacitor and abutted against the first negative terminal of the bipolar capacitor, the lithium ion battery including a third anode abutted against the first negative terminal of the bipolar capacitor, a third separator connected to the third anode, a cathode connected to the third separator, and a second positive terminal connected to the cathode.

2. The bipolar capacitor assisted battery of claim 1 , wherein:

the first capacitor of the bipolar capacitor includes a first capacitor electrode directly connected to the first positive terminal, a first separator connected to the first capacitor electrode and a first anode connected to the first separator;

the bipolar capacitor includes a current collector connected to the first anode;

the second capacitor of the bipolar capacitor includes a second capacitor electrode connected to the current collector, a second separator connected to the second capacitor electrode, and a second anode; and

the first negative terminal of the bipolar capacitor is directly connected to the second anode.

3. The bipolar capacitor assisted battery of claim 2 , wherein the lithium ion battery comprises:

a third anode connected to the first negative terminal, a third separator connected to the third anode and a first cathode connected to the third separator;

a second positive terminal connected to the first cathode;

a second cathode connected to the second positive terminal, a fourth separator connected to the second anode and a fourth anode connected to the fourth separator;

a second negative terminal connected to the fourth anode;

a fifth anode connected to the second negative terminal, a fifth separator connected to the fifth anode and a third cathode connected to the fifth separator;

a third positive terminal connected to the third cathode; and

a fourth cathode connected to the third positive terminal, a sixth separator connected to the fourth cathode and a sixth anode connected to the sixth separator.

4. The bipolar capacitor of claim 2 , further comprising a blocking material arranged on at least the first separator of the first capacitor and the second separator of the second capacitor.

5. The bipolar capacitor of claim 3 , wherein the bipolar capacitor uses a first liquid electrolyte and the lithium ion battery uses the first liquid electrolyte.

6. The bipolar capacitor of claim 3 , wherein the bipolar capacitor uses a first liquid electrolyte and the lithium ion battery uses a second liquid electrolyte that is different than the first liquid electrolyte.

7. The bipolar capacitor of claim 3 , wherein the bipolar capacitor uses a liquid electrolyte and the lithium ion battery uses a solid electrolyte.

8. The bipolar capacitor of claim 3 , wherein the bipolar capacitor uses a solid electrolyte and the lithium ion battery uses a liquid electrolyte.

9. The bipolar capacitor of claim 3 , wherein the bipolar capacitor uses a solid electrolyte and the lithium ion battery uses a solid electrolyte.

10. The bipolar capacitor assisted battery of claim 2 , wherein the lithium ion battery is bipolar and includes M lithium ion batteries connected in series, where M is an integer greater than one.

11. The bipolar capacitor assisted battery of claim 2 , wherein the cathode is a first cathode and the lithium ion battery comprises:

a first current collector connected to the first cathode;

a fourth anode connected to the first current collector, a fourth separator connected to the fourth anode and a second cathode connected to the fourth separator;

a second current collector connected to the second cathode;

a fifth anode connected to the second current collector, a fifth separator connected to the fifth anode and a third cathode connected to the fifth separator; and

a second positive terminal connected to the third cathode.

12. The bipolar capacitor of claim 11 , further comprising a blocking material arranged on at least the first separator, the second separator and the third separator of the lithium ion battery.

13. The bipolar capacitor of claim 11 , wherein the bipolar capacitor uses a first liquid electrolyte and the lithium ion battery uses the first liquid electrolyte.

14. The bipolar capacitor of claim 11 , wherein the bipolar capacitor uses a first liquid electrolyte and the lithium ion battery uses a second electrolyte that is different than the first liquid electrolyte.

15. The bipolar capacitor of claim 11 , wherein the bipolar capacitor uses a first liquid electrolyte and the lithium ion battery uses a second electrolyte that is different than the first liquid electrolyte.

16. The bipolar capacitor of claim 11 , wherein the bipolar capacitor uses a solid liquid electrolyte and the lithium ion battery uses a liquid electrolyte.

17. The bipolar capacitor of claim 11 , wherein the bipolar capacitor uses a liquid electrolyte and the lithium ion battery uses a solid electrolyte.

18. The bipolar capacitor of claim 11 , wherein the bipolar capacitor uses a solid electrolyte and the lithium ion battery uses a solid electrolyte.

19. The bipolar capacitor of claim 1 , wherein the bipolar capacitor comprises a lithium ion capacitor (LIC).

20. The bipolar capacitor of claim 1 , wherein the bipolar capacitor comprises an electric double layer capacitor (EDLC).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2021
From: LIU, JINGYUAN; KONG, DEWEN; LI, ZHE; WU, MEIYUAN; LIU, HAIJING
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 058321/0984 →
Priority Claims (1)
CN 202111338571.2 · Nov 12, 2021 · national
Continuity (1)
Related Publication 20230155213A1 · May 18, 2023