Method for recycling rechargeable batteries and rechargeable battery processing system
AssigneeDuesenfeld GmbH
InventorTill BUSSMANN
Life of this patent
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Abstract
The invention relates to a method for recycling rechargeable batteries, especially lithium rechargeable batteries and/or sodium rechargeable batteries containing a conducting salt dissolved in a conducting salt solvent, comprising the steps: (a) short-circuiting the rechargeable batteries until at least 75% of the galvanic elements have a regeneration cell voltage of at most 0.3 volts, particularly at most 0.2 volts, and (b) subsequently comminuting the rechargeable batteries, thereby obtaining comminuted material.
Claims20
A method for recycling rechargeable batteries, in particular lithium rechargeable batteries and/or sodium rechargeable batteries, consisting of at least one galvanic element, each of which has two poles, and containing a conducting salt dissolved in a conducting salt solvent, comprising the steps
- (a) short-circuiting the rechargeable batteries until at least 75% of the galvanic elements have a regeneration cell voltage of at most 0.3 volts, particularly at most 0.2 volts, and
- (b) subsequently comminuting the rechargeable batteries, thereby obtaining comminuted material.
A method for recycling rechargeable batteries, especially lithium rechargeable batteries and/or sodium rechargeable batteries containing a conducting salt dissolved in a conducting salt solvent, comprising the steps:
- (a) comminuting the rechargeable batteries, thereby obtaining comminuted material, and
- (b) washing the conducting salt out of the comminuted material using a washing solvent, thereby obtaining washed comminuted material.
A rechargeable battery processing system comprising
- (a) a rechargeable battery comminution system for comminuting the rechargeable batteries, thereby obtaining comminuted material, and
- (b) a washing device for washing the comminuted material with a washing solvent, thereby obtaining washing liquid.
The rechargeable battery processing system according to claim 0, wherein
- a washing solvent regeneration system for separating washing solvent from the washing liquid and returning the washing solvent to the washing device.
The rechargeable battery processing system according to claim 0, wherein the washing solvent regeneration system comprises a distillation device.
Dependencies are inferred from the claim text.