ПАТЕНТНЫЙ ПОИСК В РФ
НОВЫЕ ПАТЕНТЫ, ЗАЯВКИ НА ПАТЕНТ
БИБЛИОТЕКА ПАТЕНТОВ НА ИЗОБРЕТЕНИЯ

High performance electrodes for EDLCS

Патентный поиск по классам МПК-8:

Класс H01G9/00 Электролитические конденсаторы, выпрямители, детекторы; переключающие устройства, светочувствительные или термочувствительные устройства; способы их изготовления


Классы МПК:H01G9/00 Электролитические конденсаторы, выпрямители, детекторы; переключающие устройства, светочувствительные или термочувствительные устройства; способы их изготовления
Автор(ы): Gadkaree, Kishor Purushottam (Painted Post, NY, US)
Jayaraman, Shrisudersan (Painted Post, NY, US)
Lim, James Robert (Painted Post, NY, US)
Liu, Jia (Painted Post, NY, US)
Патентообладатель(и): Corning Incorporated (Corning, NY, US)
Приоритеты:
подача заявки
16.03.2010
публикация патента
26.03.2013

РЕФЕРАТ (Abstract)

An electric double layer capacitor composite electrode includes a current collector having opposing major surfaces, first and second conductive layers formed over respective ones of the major surfaces, and first and second carbon-based layers formed over the first and second conductive layers.
Полный текст Патента US 8405955 + PDF


ФОРМУЛА ИЗОБРЕТЕНИЯ (CLAIMS)

What is claimed is:

1. A composite electrode for an EDLC, the composite electrode comprising: a current collector having opposing first and second major surfaces; a first conductive layer formed over the first major surface; a second conductive layer formed over the second major surface; and a first carbon-based layer and a second carbon-based layer formed over respective ones of the first and second conductive layers, wherein the first and second carbon-based layers comprise activated carbon powder, the activated carbon powder comprising: pores having a size of ≦1 nm, which provide a combined pore volume of ≧0.3 cm3/g; pores having a size of from >1 nm to ≦2 nm, which provide a combined pore volume of ≧0.05 cm3/g; and <0.15 cm3/g combined pore volume of any pores having a size of >2 nm.

2. The composite electrode according to claim 1, wherein the current collector comprises aluminum.

3. The composite electrode according to claim 1, wherein the current collector comprises a native oxide layer formed over at least one of the first and second major surfaces.

4. The composite electrode according to claim 1, wherein the current collector has a thickness of from 5 to 100 micrometers.

5. The composite electrode according to claim 1, wherein the first and second conductive layers comprise graphite, carbon black, and a binder.

6. The composite electrode according to claim 1, wherein the first and second conductive layers each have a thickness of from 0.1 to 10 micrometers.

7. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise activated carbon powder and a binder.

8. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise activated carbon powder, carbon black, and a binder.

9. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise 70-95 wt. % activated carbon powder, 0-10 wt. % carbon black, and 5-20 wt. % binder.

10. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise activated carbon powder, the activated carbon powder comprising pores having a size of less than or equal to 2 nanometers that provide a combined pore volume of at least 95% of a total pore volume of the activated carbon powder.

11. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise activated carbon powder, the activated carbon powder comprising pores having a size of less than or equal to 1 nanometer that provide a combined pore volume of at least 50% of a total pore volume of the activated carbon powder.

12. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise activated carbon powder having a total pore volume of at least 0.3 cm3/g.

13. The composite electrode according to claim 1, wherein the first and second carbon-based layers comprise activated carbon powder having a pore volume of pores smaller than 1 nanometer of at least 0.25 cm3/g.

14. The composite electrode according to claim 1, wherein the first and second carbon-based layers each have a thickness of from 20 to 500 micrometers.

15. The composite electrode according to claim 1, wherein the composite electrode has an area-specific resistance of less than 0.3 ohm-cm2.

16. The composite electrode according to claim 1, wherein the composite electrode has an area-specific resistance of less than 0.15 ohm-cm2.

17. The composite electrode according to claim 1, wherein the first and second carbon-based layers each have an area-specific resistance of less than 0.05 ohm-cm2.

18. The composite electrode according to claim 1, wherein the activated carbon powder has a particle size of 10 micrometers or less.


Предыдущий   патент US   Следующий

Наверх