The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2025
Filed:
Oct. 23, 2020
Lg Energy Solution, Ltd., Seoul, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A method for preparing a graphene nanosheet, wherein the method includes preparing an electrode assembly comprising a negative electrode, wherein the negative electrode comprises artificial graphite, a lithium metal counter electrode opposing the negative electrode, and a separator interposed between the negative electrode and the lithium metal counter electrode, and immersing the electrode assembly in an electrolyte, electrochemically charging the immersed electrode assembly to form a charged electrode assembly, separating the artificial graphite from the charged electrode assembly to form separated artificial graphite, and de-laminating a graphene nanosheet from the separated artificial graphite, wherein the initial discharge capacity of the negative electrode is 350 mAh/g or greater, and the electrolyte comprises an organic solvent comprising a cyclic carbonate and a linear carbonate, and a lithium salt.