Electrodes containing carbon black particles and related methods

Patent metadata

Field	Value
Publication number	US-10886535-B2
Application number	US-201816009588-A
Country	US
Kind code	B2
Filing date	Jun 15, 2018
Priority date	Jun 15, 2017
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

An electrode, includes an electrically conductive substrate; and a composition supported by a surface of the electrically conductive substrate, the composition comprising carbon black particles having a Brunauer-Emmett-Teller (BET) surface area ranging from 80 m 2 /g to 1100 m 2 /g, an oil absorption number equal to or less than 300 mL/100 g, a surface energy of 10 mJ/m 2 or less, and a particle size distribution with a D 50 value equal to or less than 165 nm.

First claim

What is claimed is:

1. An electrode, comprising:
an electrically conductive substrate; and
a composition supported by a surface of the electrically conductive substrate, the composition comprising carbon black particles having a Brunauer-Emmett-Teller (BET) surface area ranging from 80 m 2 /g to 1100 m 2 /g, an oil absorption number equal to or less than 200 mL/100 g, a surface energy of 10 mJ/m 2 or less, a particle size distribution with a D 75 :D 25 ratio of less than 2.1, and a particle size distribution with a D 50 value equal to or less than 165 nm.

2. The electrode of claim 1 , wherein the carbon black particles have an L a crystallite size equal to or greater than 22 Angstroms, and/or an L c crystallite size equal to or greater than 17 Angstroms.

3. The electrode of claim 1 , wherein the carbon black particles have an L a crystallite size equal to or less than 50 Angstroms, and/or an L c crystallite size equal to or less than 40 Angstroms.

4. The electrode of claim 1 , wherein the carbon black particles have an oil absorption number equal to or greater than 140 mL/100 g.

5. The electrode of claim 1 , wherein the carbon black particles have a statistical thickness surface area equal to or greater than 30 m 2 /g.

6. The electrode of claim 1 , wherein the carbon black particles have a statistical thickness surface area equal to or less than 250 m 2 /g.

7. The electrode of claim 1 , wherein the carbon black particles have a % crystallinity (I G /(I G +I D )) equal to or less than 45%.

8. The electrode of claim 1 , wherein the carbon black particles have a % crystallinity (I G /(I G +I D )) equal to or greater than 35%.

9. The electrode of claim 1 , wherein the D 50 value is equal to or greater than 70 nm.

10. The electrode of claim 1 , wherein the composition comprises from 0.5 wt % to 10 wt % of the carbon black particles.

11. The electrode of claim 1 , wherein the composition further comprises a lithium ion-based electroactive material.

12. The electrode of claim 1 , wherein the composition comprises an electroactive material comprising lithium and cobalt, and from 0.5 wt % to 10 wt % of the carbon black particles.

13. The electrode of claim 1 , wherein the carbon black particles have a (D 90 −D 10 )/D 50 value less than 1.5.

14. The electrode of claim 1 , wherein the carbon black particles have a particle size distribution with D 75 :D 25 ratio of greater than 1.05, and/or a (D 90 −D 10 )/D 50 value greater than 1.05.

15. The electrode of claim 1 , wherein the carbon black particles have a monomodal particle size distribution.

16. An energy storage device comprising the electrode of claim 1 .

17. The energy storage device of claim 16 , wherein the device is selected from the group consisting of a lithium ion battery, a primary alkaline battery, a primary lithium battery, a nickel metal hydride battery, a sodium battery, a lithium sulfur battery, a lithium air battery, and a supercapacitor.

18. Carbon black particles having a Brunauer-Emmett-Teller (BET) surface area ranging from 80 m 2 /g to 1100 m 2 /g, an oil absorption number equal to or less than 200 mL/100 g, a surface energy of 10 mJ/m 2 or less, a particle size distribution with a D 75 :D 25 ratio of less than 2.1, and a particle size distribution with a D 50 value equal to or less than 165 nm.

19. The carbon black particles of claim 18 , wherein the carbon black particles have an L a crystallite size equal to or greater than 22 Angstroms, and/or an L c crystallite size equal to or greater than 17 Angstroms.

20. The carbon black particles of claim 18 , wherein the carbon black particles have an L a crystallite size equal to or less than 50 Angstroms, and/or an L c crystallite size equal to or less than 40 Angstroms.

21. The carbon black particles of claim 18 , wherein the carbon black particles have an oil absorption number equal to or greater than 140 mL/100 g.

22. The carbon black particles of claim 18 , wherein the carbon black particles have a statistical thickness surface area equal to or greater than 30 m 2 /g.

23. The carbon black particles of claim 18 , wherein the carbon black particles have a statistical thickness surface area equal to or less than 250 m 2 /g.

24. The carbon black particles of claim 18 , wherein the carbon black particles have a % crystallinity (I G /(I G +I D )) equal to or less than 45%.

25. The carbon black particles of claim 18 , wherein the carbon black particles have a % crystallinity (I G /(I G +I D )) equal to or greater than 35%.

26. The carbon black particles of claim 18 , wherein the D 50 value is equal to or greater than 70 nm.

27. The carbon black particles of claim 18 , wherein the carbon black particles have a (D 90 −D 10 )/D 50 value less than 1.5.

28. The carbon black particles of claim 18 , wherein the carbon black particles have a particle size distribution with D 75 :D 25 ratio of greater than 1.05, and/or a (D 90 −D 10 )/D 50 value greater than 1.05.

29. The carbon black particles of claim 18 , wherein the carbon black particles have a monomodal particle size distribution.

Assignees

• Cabot Corp

Inventors

• Korchev Andriy
• Dupasquier Aurelien L
• Oljaca Miodrag
• Moeser Geoffrey D

Classifications

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M4/625 Primary

  Carbon or graphite · CPC title

• C09C1/50

  Furnace black {; Preparation thereof (separation or recovery C09C1/487)} · CPC title

• C09C1/48

  Carbon black · CPC title

• H01M4/525

  of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title