Ion conductor material and battery
US-2022077493-A1 · Mar 10, 2022 · US
Rheologically modified slurries for electrochemical cells and components made therefrom
US12368183B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12368183-B2 |
| Application number | US-202217670213-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 11, 2022 |
| Priority date | Feb 11, 2021 |
| Publication date | Jul 22, 2025 |
| Grant date | Jul 22, 2025 |
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- Title
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Abstract
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A method for producing a rheologically modified slurry and electrochemical cells made therefrom.
First claim
Opening claim text (preview).
What is claimed: 1. An electrochemical cell layer comprising: a cathode active material; a solid-state electrolyte; and a rheology modifying component comprising a poly (styrene-butadiene-styrene) block copolymer (SBS), wherein the rheology modifying component is present in an amount of less than 0.5% by weight of the electrochemical cell layer, and wherein the SBS has a butadiene content of 50% or more. 2. The electrochemical cell layer of claim 1 wherein the layer is embodied in an electrochemical cell stack, the electrochemical cell stack comprising a separator layer comprising at least one additional binder or polymer. 3. The electrochemical cell layer of claim 2 wherein the binder or polymer is at least one binder or polymer selected from the group consisting of polystyrene, polyvinylidene fluoride (PVdF), and poly (vinylene difluoride-hexafluoropropylene) copolymer (PVdF-HFP). 4. The electrochemical cell layer of claim 1 further comprising a binder or polymer, and a conductive additive. 5. The electrochemical cell layer of claim 1 wherein the cathode active material is selected from the group consisting of NMC, LiFePO 4 , LiCoO 2 , NCA, NMA, LMO, and iron sulfide. 6. The electrochemical cell layer of claim 4 wherein the conductive additive is selected from the group consisting of carbon black, graphite, graphene, VGCF, activated carbon, and carbon nanotubes. 7. The electrochemical cell layer of claim 1 wherein the layer is embodied in an electrochemical cell stack, the electrochemical cell stack comprising an anode layer comprising an anode active material, a binder or polymer, and a conductive additive. 8. The electrochemical cell layer of claim 7 wherein the anode active material is selected from the group consisting of Si, Si alloys, graphite, Sn, Li, and lithium alloys. 9. The electrochemical cell layer of claim 7 wherein the conductive additive is selected from the group consisting of carbon black, graphite, graphene, VGCF, activated carbon, and carbon nanotubes. 10. The electrochemical cell layer of claim 1 , wherein the rheology modifying component is present in an amount of about 0.25% by weight of the electrochemical cell layer.
Assignees
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Classifications
Solid electrolytes · CPC title
Carbon or graphite · CPC title
fluorinated polymers · CPC title
Carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
Silicon or alloys based on silicon · CPC title
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- What does patent US12368183B2 cover?
- A method for producing a rheologically modified slurry and electrochemical cells made therefrom.
- Who is the assignee on this patent?
- Solid Power Operating Inc
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0562. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 22 2025 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).