Recovery of contaminant free battery materials

Patent metadata

Field	Value
Publication number	US-2025087777-A1
Application number	US-202418958660-A
Country	US
Kind code	A1
Filing date	Nov 25, 2024
Priority date	Feb 19, 2021
Publication date	Mar 13, 2025
Grant date	—

Abstract

A shredder for minimizing aggregation of whole batteries can include a shaft defining a longitudinal axis and a latitudinal axis. The shredder can include a plurality of teeth disposed on knives which fit on said shaft at an angle to the latitudinal axis selected from 0 degrees and 45 degrees. The teeth can have a first proximal end integrally molded to the shaft and a second free distal end.

First claim

What is claimed is:

1 . A shredder for minimizing aggregation of whole batteries, the shredder comprising the following:
a shaft defining a longitudinal axis and a latitudinal axis; and a plurality of teeth disposed on knives which fit on said shaft at an angle to the latitudinal axis selected from 0 degrees and 45 degrees, wherein the teeth have a first proximal end integrally molded to the shaft and a second free distal end.

2 . The shredder of claim 1 , wherein the free distal end defines a hook.

3 . The shredder of claim 1 , wherein the shaft and teeth define a knife and the distance between teeth is similar to the width of the knife.

4 . The shredder of claim 3 , wherein the aspect ratio of the distance between the teeth to the width of the knife is near 1.

5 . The shredder of claim 1 , wherein the shredder defines a single shaft system.

6 . The shredder of claim 1 , wherein the shredder defines a multiple shaft system.

7 . The shredder of claim 1 , wherein the distance between the teeth edges ranges from ⅛ inches to 12 inches.

8 . The shredder of claim 1 , wherein the teeth define a pattern selected from the group consisting of running, chevron, staggered, and combinations thereof.

9 . The shredder of claim 1 , wherein:
the plurality of teeth comprise a first tooth having a first tip and a second tooth having a second tip; a distance between the first tip and the second tip is equal to a width of the first tooth.

10 . The shredder of claim 1 , wherein the knives have tips spaced from each other a distance equal to a width of the teeth.

11 . The shredder of claim 1 , wherein the shaft is a first shaft, the shredder further comprising:
a second shaft disposed a distance from the first shaft; wherein the plurality of teeth is disposed on the knives which fit on the second shaft.

12 . The shredder of claim 11 , wherein the first shaft and the second shaft are configured to rotate at between 5 and 400 rpm.

13 . The shredder of claim 11 , wherein the first shaft and the second shaft are configured to rotate at between 10 to 40 rpm.

14 . The shredder of claim 1 , wherein the shaft is configured to rotate at between 25 to 200 rpm.

15 . The shredder of claim 1 , wherein each knife of the knives comprises a first surface parallel to a second surface.

Assignees

• Uchicago Argonne Llc

Inventors

• Spangenberger Jeffrey S
• Polzin Bryant J
• Durham Jessica L

Classifications

• B02C18/146

  with a rotor comprising a plurality of axially contiguous disc-like segments each having at least one radially extending cutting element · CPC title

• B02C18/142 Primary

  with two or more inter-engaging rotatable cutter assemblies · CPC title

• B02C18/182

  Disc-shaped knives · CPC title

• B02C18/08

  within vertical containers {(B02C18/062, B02C18/065 take precedence)} · CPC title

• H01M10/54 Primary

  Reclaiming serviceable parts of waste accumulators · CPC title