Self standing electrodes and methods for making thereof
US-2019036103-A1 · Jan 31, 2019 · US
Method for producing a precursor material for an electrochemical cell
US11901547B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11901547-B2 |
| Application number | US-201917311405-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2019 |
| Priority date | Dec 5, 2018 |
| Publication date | Feb 13, 2024 |
| Grant date | Feb 13, 2024 |
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- Title
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Abstract
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The present invention relates to a method for producing a precursor material ( 10 ) for an electrochemical cell. The method comprises the steps of adding a matrix material ( 18 ) to a fluidized bed ( 40 ), and adding a carrier medium ( 48 ) and a de-agglomerated carbon nanotube material ( 22 ) to the fluidized bed ( 40 ), so that the carbon nanotube material ( 22 ) and the carrier medium ( 48 ) is applied to the matrix material ( 18 ) and the latter is granulated therewith, wherein the carbon nanotube material ( 22 ) has been suspended and de-agglomerated prior to addition to the carrier medium ( 48 ), and/or the carbon nanotube material ( 22 ) present in de-agglomerated form in the fluidized bed ( 40 ) dissolving with the carrier medium ( 48 ) in the fluidized bed ( 40 ).
First claim
Opening claim text (preview).
What is claimed is: 1. A process for producing a precursor material ( 10 ) for an electrochemical cell, wherein the process comprises the steps: introduction of a matrix material ( 18 ) into a fluidized bed ( 40 ), and introduction of a carrier medium ( 48 ) and a deagglomerated carbon nanotube material ( 22 ) into the fluidized bed ( 40 ) so that the carbon nanotube material ( 22 ) is applied together with the carrier medium ( 48 ) to the matrix material ( 18 ) and the latter is granulated therewith, where the carbon nanotube material ( 22 ) has been suspended and deagglomerated in the carrier medium ( 48 ) before introduction and/or the carbon nanotube material ( 22 ) present in deagglomerated form in the fluidized bed ( 40 ) dissolves with the carrier medium ( 48 ) in the fluidized bed ( 40 ). 2. The process as claimed in claim 1 , wherein active material particles or solid particles are used as matrix material ( 18 ). 3. The process as claimed in claim 1 , wherein at least one polymer and/or a binder is dissolved in the carrier medium ( 48 ) before introduction. 4. The process as claimed in claim 3 , wherein an electrolyte salt is dissolved together with the at least one polymer in the carrier medium ( 48 ) before introduction. 5. The process as claimed in claim 3 , wherein an electrolyte salt is added during or after granulation. 6. The process as claimed in claim 1 , wherein a surface ( 30 ) of the carbon nanotube material ( 22 ) and of the matrix material ( 18 ) is modified before introduction into the fluidized bed ( 40 ). 7. The process as claimed in claim 1 , wherein a further amount of polymer is added after granulation. 8. The process as claimed in claim 1 , wherein the carbon nanotube material ( 22 ) has been suspended and deagglomerated in the carrier medium ( 48 ) before introduction. 9. The process as claimed in claim 1 , wherein the carbon nanotube material ( 22 ) present in deagglomerated form in the fluidized bed ( 40 ) dissolves with the carrier medium ( 48 ) in the fluidized bed ( 40 ). 10. The process as claimed in claim 1 , wherein the carbon nanotube material ( 22 ) has been suspended and deagglomerated in the carrier medium ( 48 ) before introduction and the carbon nanotube material ( 22 ) present in deagglomerated form in the fluidized bed ( 40 ) dissolves with the carrier medium ( 48 ) in the fluidized bed ( 40 ).
Assignees
Inventors
Classifications
- H01M4/1393Primary
of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
being polymers · CPC title
Carbon or graphite · CPC title
- H01M4/621Primary
Binders · CPC title
Processes of manufacture · CPC title
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Frequently asked questions
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- What does patent US11901547B2 cover?
- The present invention relates to a method for producing a precursor material ( 10 ) for an electrochemical cell. The method comprises the steps of adding a matrix material ( 18 ) to a fluidized bed ( 40 ), and adding a carrier medium ( 48 ) and a de-agglomerated carbon nanotube material ( 22 ) to the fluidized bed ( 40 ), so that the carbon nanotube material ( 22 ) and the carrier medium ( 48 )…
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- What technology area does this patent fall under?
- Primary CPC classification H01M4/1393. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 13 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).