Conductive Carbons for Lithium Ion Batteries
US-2016293959-A1 · Oct 6, 2016 · US
Electrodes, compositions, and devices having high structure carbon blacks
US10971730B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10971730-B2 |
| Application number | US-201916458364-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 1, 2019 |
| Priority date | May 5, 2016 |
| Publication date | Apr 6, 2021 |
| Grant date | Apr 6, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
An electrode for an energy storage device includes carbon black particles having (a) a Brunauer-Emmett-Teller (BET) surface area ranging from 70 to 120 m 2 /g; (b) an oil absorption number (OAN) ranging from 180 to 310 mL/100 g; (c) a surface energy less than or equal to 15 mJ/m 2 ; and (d) either an L a crystallite size less than or equal to 29 Å, or a primary particle size less than or equal to 24 nm.
First claim
Opening claim text (preview).
What is claimed is: 1. Carbon black particles having (a) a Brunauer-Emmett-Teller (BET) surface area ranging from 70 to 120 m 2 /g; (b) an oil absorption number (OAN) ranging from 180 to 310 mL/100 g; (c) a surface energy less than or equal to 15 mJ/m 2 ; and (d) either an L a crystallite size less than or equal to 29 Å, or a primary particle size less than or equal to 24 nm. 2. The carbon black particles of claim 1 , wherein the carbon black particles have both an L a crystallite size less than or equal to 29 Å, and a particle size less than or equal to 24 nm. 3. The carbon black particles of claim 1 , wherein the carbon black particles have a BET surface area ranging from 80 to 110 m 2 /g. 4. The carbon black particles of claim 1 , wherein the carbon black particles have a BET surface area ranging from 70 to 100 m 2 /g. 5. The carbon black particles of claim 1 , wherein the carbon black particles have an OAN number ranging from 200 to 285 mL/100 g. 6. The carbon black particles of claim 1 , wherein the carbon black particles have an OAN number ranging from 200 to 260 mL/100 g. 7. The carbon black particles of claim 1 , wherein the carbon black particles have either an L a crystallite size less than or equal to 27 Å, or a particle size less than or equal to 22 nm. 8. The carbon black particles of claim 1 , wherein the carbon black particles have either an L a crystallite size less than or equal to 29 Å, or a particle size less than or equal to 20 nm. 9. The carbon black particles of claim 1 , wherein the carbon black particles have an L a crystallite size less than or equal to 29 Å. 10. The carbon black particles of claim 1 , wherein the carbon black particles have an L a crystallite size less than or equal to 27 Å. 11. The carbon black particles of claim 1 , wherein the carbon black particles have an L a crystallite size ranging from 25 Å to 29 Å. 12. The carbon black particles of claim 1 , wherein the carbon black particles have a particle size less than or equal to 24 nm. 13. The carbon black particles of claim 1 , wherein the carbon black particles have a primary particle size less than or equal to 22 nm. 14. The carbon black particles of claim 1 , wherein the carbon black particles have a primary particle size of ranging from 12 to 24 nm. 15. The carbon black particles of claim 1 , wherein the carbon black particles have a surface energy of ranging from 1 to 10 mJ/m 2 . 16. The carbon black particles of claim 1 , wherein the carbon black particles have a % crystallinity (I G /I G+D ) less than or equal to 45%, as determined by Raman spectroscopy. 17. The carbon black particles of claim 1 , wherein the carbon black particles have a % crystallinity (I G /I G+D ) ranging from 35% to 45%, as determined by Raman spectroscopy. 18. The carbon black particles of claim 1 , wherein the carbon black particles have an oxygen content of less than or equal to 1 wt %. 19. The carbon black particles of claim 1 , wherein the carbon black particles have a dispersability of less than one micron (D 50 by volume). 20. The carbon black particles of claim 1 , wherein the carbon black particles have a ratio of statistical thickness surface area to Brunauer-Emmett-Teller surface area (STSA:BET) greater than 0.95:1.
Assignees
Inventors
Classifications
Physical characteristics, e.g. porosity, surface area · CPC title
- H01M4/625Primary
Carbon or graphite · CPC title
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Oil-absorption capacity, e.g. DBP values · CPC title
Electric properties · CPC title
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Frequently asked questions
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- What does patent US10971730B2 cover?
- An electrode for an energy storage device includes carbon black particles having (a) a Brunauer-Emmett-Teller (BET) surface area ranging from 70 to 120 m 2 /g; (b) an oil absorption number (OAN) ranging from 180 to 310 mL/100 g; (c) a surface energy less than or equal to 15 mJ/m 2 ; and (d) either an L a crystallite size less than or equal to 29 Å, or a primary particle size less than or equal…
- Who is the assignee on this patent?
- Cabot Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/625. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 06 2021 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).