Method for dismantling a battery cell using fluid jets

Patent metadata

Field	Value
Publication number	US-9620790-B2
Application number	US-201414492256-A
Country	US
Kind code	B2
Filing date	Sep 22, 2014
Priority date	Oct 28, 2013
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A method for recycling a plurality of battery cells, the method includes the steps of orienting a plurality of battery cells along a processing path having at least two fluid jets, moving the plurality of battery cells along the processing path proximate the at least two fluid jets, wherein the at least two fluid jets are positioned to cut first and second ends of each of the plurality of battery cells, and cutting the first and second ends of each of the plurality of battery cells with the at least two fluid jets to expose an interior volume of each of the plurality of battery cells.

First claim

The invention claimed is:

1. A method for dismantling batteries for recycling, the method comprising the steps of:
positioning at least one battery proximate at least one fluid jet;
removing first and second ends of the at least one battery using the at least one fluid jet, thereby exposing an interior volume of the at least one battery;
positioning the at least one battery proximate a fluid gun; and
at least one of: i) removing at least a portion of anode material from the interior volume using the fluid gun and capturing at least a portion of the anode material; and ii) removing at least a portion of a cathode ring from the interior volume of the at least one battery using the fluid gun and capturing the at least a portion of the cathode ring.

2. The method of claim 1 , further comprising
removing the anode material from an anode basket recovered from the battery.

3. The method of claim 1 , further comprising causing the at least one fluid jet and the fluid gun to deliver a liquid media.

4. The method of claim 3 , further comprising providing at least one abrasive material to the liquid media.

5. The method of claim 3 , wherein the liquid media comprises water.

6. The method of claim 3 , wherein the liquid media comprises a mineral oil solution.

7. The method of claim 3 , further comprising delivering via the at least one fluid jet the liquid media at a first pressure, and delivering via the fluid gun the liquid media at a second pressure, wherein the first pressure is greater than the second pressure.

8. The method of claim 3 , further comprising:
recirculating the liquid media delivered by the at least one fluid jet and the fluid gun through a fluid media path; and
filtering the liquid media within the fluid media path.

9. The method of claim 1 , further comprising separately capturing the anode material and the at least a portion of the cathode ring.

10. The method of claim 1 , further comprising cutting one of the first and second ends of the at least one battery with a first fluid jet and cutting the other of the first and second ends of the at least one battery with a second fluid jet.

11. The method of claim 1 , wherein the at least one battery has not been discharged before removing the first and second ends of the at least one battery.

12. The method of claim 1 , further comprising sequentially or simultaneously removing the first and second ends of a plurality of batteries.

13. The method of claim 12 , further comprising:
separating at least an anode basket from the interior volume of each of the plurality of batteries using at least one fluid gun;
collecting at least the anode material from each of the plurality of batteries;
removing at least a portion of a cathode ring from the interior volume of each of the plurality of batteries using the at least one fluid gun;
capturing the at least a portion of the cathode ring; and
wherein the anode material and the at least a portion of the cathode ring from each battery are captured separately.

14. The method of claim 12 , wherein removing the first and second ends of each of the plurality of batteries further includes sorting the plurality of batteries based upon a cell type into pluralities of sorted battery cells.

15. A method for recycling a plurality of battery cells, the method comprising:
orienting a plurality of battery cells along a processing path having at least two fluid jets;
moving the plurality of battery cells along the processing path proximate the at least two fluid jets, wherein the at least two fluid jets are positioned to cut first and second ends of each of the plurality of battery cells; and
cutting the first and second ends of each of the plurality of battery cells with the at least two fluid jets to expose an interior volume of each of the plurality of battery cells.

16. The method of claim 15 , further comprising:
moving the plurality of battery cells along the processing path proximate to one or more fluid guns;
positioning each of the plurality of battery cells proximate at least one of the one or more fluid guns, wherein each of the one or more fluid guns is positioned to remove at least a portion of an anode basket and anode material from the interior volume of each of the plurality of battery cells;
removing at least the anode basket and anode material from the internal volume of each of the plurality battery cells using the one or more fluid guns; and
capturing at least the anode material.

17. The method of claim 16 , further comprises delivering a liquid media through the at least two fluid jets and the one or more fluid guns.

18. The method of claim 15 , further comprising:
sorting the plurality of battery cells into pluralities of sorted battery cells arranged in a plurality of sorted paths corresponding to each of the pluralities of sorted battery cells.

Assignees

• Energizer Brands Llc

Inventors

• Deighton Thomas N

Classifications

• B24C1/045

  for cutting (energy dissipating devices therefor B26F3/008) · CPC title

• H01M6/52 Primary

  Reclaiming serviceable parts of waste cells or batteries {, e.g. recycling} · CPC title

• B24C9/006

  Treatment of used abrasive material · CPC title

• Y02P70/179

  Cross-Sectional Technologies · mapped topic

• Y02W30/84

  Recycling of batteries or fuel cells · CPC title