Vehicle battery cell having a helical gas flow path

Patent metadata

Field	Value
Publication number	US-2024347745-A1
Application number	US-202318300291-A
Country	US
Kind code	A1
Filing date	Apr 13, 2023
Priority date	Apr 13, 2023
Publication date	Oct 17, 2024
Grant date	—

Abstract

A battery cell includes an anode, an electrolyte surrounding the anode, a cathode surrounding the electrolyte, and a shell surrounding the cathode. The shell includes a gas inlet and a gas outlet. A gas flow path extends helically from the gas inlet to the gas outlet. The gas flow path is formed between the shell and the cathode.

First claim

1 . A battery cell comprising:
an anode; an electrolyte surrounding the anode; a cathode surrounding the electrolyte; a shell surrounding the cathode, the shell including a gas inlet and a gas outlet; and a gas flow path extending helically from the gas inlet to the gas outlet, the gas flow path being formed between the shell and the cathode.

2 . The battery cell according to claim 1 , wherein
the cathode is a substantially cylindrical tube.

3 . The battery cell according to claim 2 , wherein
a rib projects outwardly from an outer surface of the cathode, the rib extending helically from a first end to a second end of the cathode.

4 . The battery cell according to claim 3 , wherein
the gas flow path is defined by the outer surface of the cathode, the rib and the inner surface of the shell.

5 . The battery cell according to claim 1 , wherein
the shell is made of aluminum.

6 . The battery cell according to claim 1 , wherein
the cathode is made of carbon.

7 . The battery cell according to claim 1 , wherein
the anode is made of lithium.

8 . The battery cell according to claim 1 , wherein
the electrolyte includes an amine dissolved in a battery solvent.

9 . The battery cell according to claim 8 , wherein
the electrolyte includes a salt.

10 . A battery system comprising:
a base including a gas feed chamber; and a plurality of battery cells connected to the base, each battery cell including
an anode;
an electrolyte disposed adjacent the anode;
a cathode disposed adjacent to the electrolyte;
a shell disposed adjacent to the cathode, the shell including a gas inlet and a gas outlet; and
a gas flow path extending helically from the gas inlet to the gas outlet, the gas flow path being formed between the shell and the cathode, the gas flow path being connected to the gas feed chamber.

11 . The battery system according to claim 10 , wherein
an inlet feed pipe is connected to the gas feed chamber.

12 . The battery system according to claim 11 , wherein
the inlet feed pipe is connected to the gas inlet of two battery cells.

13 . The battery system according to claim 11 , wherein
the inlet feed pipe is connected to the gas inlet of four battery cells.

14 . The battery system according to claim 10 , wherein
the gas feed chamber is connected to an exhaust pipe of a vehicle to supply carbon dioxide to the gas feed chamber.

15 . The battery system according to claim 10 , wherein
a first tank is connected to the gas feed chamber to supply gas to the gas feed chamber.

16 . The battery system according to claim 10 , wherein
a second tank is connected to the gas outlets of the plurality of battery cells.

17 . The battery cell according to claim 10 , wherein
a rib projects outwardly from an outer surface of the cathode, the rib extending helically from a first end to a second end of the cathode, the gas flow path being defined by the outer surface of the cathode, the rib and the inner surface of the shell.

18 . The battery cell according to claim 10 , wherein
the cathode is made of carbon.

19 . The battery cell according to claim 10 , wherein
the electrolyte includes an amine dissolved in a battery solvent.

20 . The battery cell according to claim 19 , wherein
the electrolyte includes a salt.

Assignees

• Nissan North America Inc

Inventors

• Gumeci Cenk
• Patil Sandeep

Classifications

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H01M8/04201 Primary

  Reactant storage and supply, e.g. means for feeding, pipes · CPC title

• H01M4/382

  Lithium (H01M4/405 takes precedence) · CPC title

• H01M12/08

  composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title

• H01M4/96

  Carbon-based electrodes · CPC title