Carbonized mushroom electrodes and methods

Patent metadata

Field	Value
Publication number	US-10818914-B2
Application number	US-201615554700-A
Country	US
Kind code	B2
Filing date	Mar 4, 2016
Priority date	Mar 5, 2015
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A carbonized mushroom tissue electrode material and methods are shown. In one example, carbonized mushroom tissue is used as an electrode in a battery, such as a lithium ion battery. A battery, comprising: a first electrode, including: carbonized tissue from a mushroom; a second electrode; and an electrolyte in contact with both the first electrode and the second electrode.

First claim

What is claimed is:

1. A battery, comprising:
a first electrode, including:
carbonized cap skin tissue from a mushroom, the carbonized tissue including a hierarchically porous structure wherein the carbonized tissue is approximately 50 weight percent carbon;
a second electrode; and
an electrolyte in contact with both the first electrode and the second electrode.

2. The battery of claim 1 , wherein the carbonized tissue from a mushroom includes carbonized Portobello mushroom tissue.

3. The battery of claim 1 , wherein the electrolyte includes LiPF 6 .

4. The battery of claim 1 , wherein the second electrode includes lithium metal.

5. A method of forming a battery, comprising:
separating an amount of Portobello mushroom cap skin tissue from a mushroom;
pyrolyzing the cap skin tissue to form a carbon based electrode; and
coupling the carbon based electrode to a lithium metal electrode through an electrolyte.

6. A method of forming a battery, comprising:
separating an amount of Portobello mushroom cap skin tissue from a mushroom;
pyrolyzing the cap skin tissue to form a carbon based electrode; and
coupling the carbon based electrode to a lithium metal electrode through an electrolyte., wherein pyrolyzing the cap skin tissue includes heating the sample at a temperature of approximately 700° C. to approximately 1100° C.

7. The method of claim 6 , wherein pyrolyzing the cap skin tissue includes heating the sample at approximately 900° C.

8. The method of claim 6 , wherein pyrolyzing the cap skin tissue includes heating the sample at approximately 1100° C.

9. The method of claim 6 , wherein pyrolyzing the cap skin tissue includes pre-drying the cap skin tissue in an inert gas atmosphere.

10. The method of claim 9 , wherein the inert gas atmosphere is argon.

11. The method of claim 6 , wherein pyrolyzing the cap skin tissue includes heating the sample at approximately 700° C.

Assignees

• Univ California

Inventors

• Campbell Brennan
• Ionescu Robert
• Ozkan Cengiz S
• Ozkan Mihrimah

Classifications

• H01M4/587

  for inserting or intercalating light metals · CPC title

• H01M4/1393 Primary

  of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title

• H01M4/0471

  involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis · CPC title

• H01M10/0568

  characterised by the solutes · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title