Open tube battery housing

Patent metadata

Field	Value
Publication number	US-11450909-B2
Application number	US-201916564996-A
Country	US
Kind code	B2
Filing date	Sep 9, 2019
Priority date	Sep 12, 2018
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A battery includes a battery case including a housing having side walls defining a first open end and a second open end, the battery case including a separate top cover to cover the first open end of the housing and a separate bottom cover to cover the second open end of the housing; a first electrode located within the case; a second electrode located within the case; a first terminal coupled to the first electrode and exposed outside the case; and a second terminal coupled to the second electrode and exposed outside the case.

First claim

The claimed invention is:

1. A battery comprising:
a battery case including a housing having side walls defining a first open end and a second open end, the battery case including a separate top cover to cover the first open end of the housing and a separate bottom cover to cover the second open end of the housing;
a first electrode located within the case, wherein the first electrode includes an electrode material that is directly attached to the inner surface of the side walls of the housing such that the electrode material defines a hollow core within the first electrode, the hollow core having a cross-sectional shape in a plane perpendicular to a longitudinal axis of the hollow core which is the same as a cross-sectional shape of the housing in a plane perpendicular to a longitudinal axis of the housing;
a second electrode located within the case and wherein the second electrode is positioned within the hollow core;
a first terminal coupled to the first electrode and exposed outside the case; and
a second terminal coupled to the second electrode and exposed outside the case.

2. The battery of claim 1 , wherein the first electrode includes lithium.

3. The battery of claim 1 , wherein the housing acts as a first current collector for the first electrode.

4. The battery of claim 3 , wherein the first terminal is coupled to the case and the second terminal includes a feedthrough which is insulated from the case.

5. The battery of claim 4 , wherein the second electrode includes a second current collector coupled to the feedthrough and active electrode material around the second current collector and the battery further includes a separator bag covering a bottom and side surfaces of the second electrode with a top surface of the second electrode exposed toward the top cover.

6. The battery of claim 5 , including a ribbon connector attached to and folded between the second current collector and the feedthrough.

7. The battery of claim 1 , wherein the first terminal includes a first feedthrough which is insulated from the case and extends through the top cover and the second terminal includes a second feedthrough which is insulated from the case and extends through the bottom cover.

8. The battery of claim 1 , wherein the housing is cylindrical.

9. The battery of claim 1 , wherein the housing is rectangular.

10. The battery of claim 1 , wherein the first electrode includes a lithium sheet that is laminated to the inner surface of the side walls of the housing.

Assignees

• Cardiac Pacemakers Inc

Inventors

• Koshiol Kurt E
• Haasl Benjamin J
• Delmedico Joseph Charles
• Brooks Aaron Peter
• Frandrup Steven Lawrence
• Dauwalter Andrew
• Maile Keith R
• Chi Ignacio

Classifications

• H01M50/559

  Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells (H01M50/553 takes precedence) · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M50/466

  U-shaped, bag-shaped or folded · CPC title

• H01M50/179

  for cells having curved cross-section, e.g. round or elliptic (H01M50/176, H01M50/181 take precedence) · CPC title

• H01M50/172

  Arrangements of electric connectors penetrating the casing · CPC title