Method for processing battery and system thereof

Abstract

The present invention provides a battery processing method, comprising: forming at least one slit in a casing of a battery, removing the casing by means of the at least one slit to obtain an electrode roll covered by the casing, and unrolling the electrode roll to obtain an electrode roll composition.

Claims

1. A battery processing method, comprising: A battery providing step involves providing a cylindrical battery, comprising: a housing layer including: a head end; a tail end disposed relative to the head end; a body portion connecting the head end and the tail end; and an electrode roll disposed within the housing layer corresponding to the body portion, wherein the electrode roll is defined as a composite layer maintaining a coiled state, wherein the composite layer has an outermost layer, one side of which is separably adhered to the inner side of the housing layer; a first slit forming step comprising: forming a first slit around the head end and the body portion; forming a second slit around the tail end and the body portion; and a second slit forming step comprising: forming a third slit in the body portion, and having both ends of the third slit contact the first slit and the second slit, respectively; wherein... The third slit penetrates the body portion and at least partially enters the outermost layer, thereby forming an unfolding intervention port in the outermost layer; and a pole roll processing step, which includes: a pole roll acquisition step, which uses the first slit, the second slit and the third slit to acquire the pole roll from inside the outer shell layer; and a pole roll unfolding step, which uses the unfolding intervention port to release the curled state.

2. The method as described in request item 1, wherein: In the battery supply step: the composite layer further has a primary outer layer, one side of which is detachably attached to the other side of the outermost layer; in the second slit forming step: the outermost layer further has an unfolded edge formed on one side of the unfolding inlet; thereby, in the electrode unfolding step: the unfolded edge is clamped and dragged in a spiral direction opposite to the curled state, so that the outermost layer is separated from the primary outer layer, thereby releasing the curled state.

3. The method as described in request item 1, wherein, The depth of the third secant is determined by a formula: Depth (D) = tcan + k (tlayer), where tcan is the thickness of the body part, tlayer is the thickness of the outermost layer, and k is the depth coefficient.

4. The method as described in request item 3, wherein, The depth coefficient is selected from any value between 0.1 and 0.4, between 0.4 and 0.7, or between 0.7 and 0.

9.

5. A battery processing and electrode roll recycling system, comprising: An arithmetic module is used to provide a processing instruction; and a processing module that receives the processing instruction and executes: a battery supply step, which provides a cylindrical battery comprising: a housing layer comprising: a head end; a tail end disposed relative to the head end; a body portion connecting the head end and the tail end; and an electrode roll disposed within the housing layer corresponding to the body portion, wherein the electrode roll is defined as a composite layer maintaining a coiled state, wherein the composite layer has an outermost layer, one side of which is separably adhered to the inner side of the housing layer; a first slit forming step comprising: forming a first slit around the head end and the body portion; forming a second slit around the tail end and the body portion; a second slit forming step comprising: forming a third slit in the body portion, and having both ends of the third slit contact the first slit and the second slit respectively; wherein... The third slit penetrates the body portion and at least partially enters the outermost layer, thereby forming an unfolding intervention port in the outermost layer; and a pole roll processing step, which includes: a pole roll acquisition step, which uses the first slit, the second slit and the third slit to acquire the pole roll from inside the outer shell layer; and a pole roll unfolding step, which uses the unfolding intervention port to release the curled state.

6. The system as described in claim 5, wherein: In the battery supply step: the composite layer further has a primary outer layer, one side of which is detachably attached to the other side of the outermost layer; in the second slit forming step: the outermost layer further has an unfolded edge formed on one side of the unfolding inlet; thereby, in the electrode unfolding step: the unfolded edge is clamped and dragged in a spiral direction opposite to the curled state, so that the outermost layer is separated from the primary outer layer, thereby releasing the curled state.

7. The system as described in claim 5, wherein, The processing instruction includes a formula that the processing module uses to determine the depth of the third secant: Depth (D) = tcan + k (tlayer), where tcan is the thickness of the body part, tlayer is the thickness of the outermost layer, and k is the depth coefficient.

8. The system as described in claim 7, wherein, The depth coefficient is selected from any value between 0.1 and 0.4, between 0.4 and 0.7, or between 0.7 and 0.9.

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