View source for 20240038963. NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME simplified abstract (LG Energy Solution, Ltd.)

=NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME=


==Organization Name==

[[:Category:LG Energy Solution, Ltd.|LG Energy Solution, Ltd.]]


[[Category:LG Energy Solution, Ltd.]]

==Inventor(s)==

[[:Category:IL-GEUN Oh of Daejeon (KR)|IL-GEUN Oh of Daejeon (KR)]][[Category:IL-GEUN Oh of Daejeon (KR)]]

[[:Category:Sun-Young Shin of Daejeon (KR)|Sun-Young Shin of Daejeon (KR)]][[Category:Sun-Young Shin of Daejeon (KR)]]

[[:Category:Dong-Hyuk Kim of Daejeon (KR)|Dong-Hyuk Kim of Daejeon (KR)]][[Category:Dong-Hyuk Kim of Daejeon (KR)]]

[[:Category:Yong-Ju Lee of Daejeon (KR)|Yong-Ju Lee of Daejeon (KR)]][[Category:Yong-Ju Lee of Daejeon (KR)]]

==NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240038963 titled 'NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

==Simplified Explanation==

The abstract describes a negative electrode and a lithium secondary battery that includes the same. The negative electrode consists of a current collector and a negative electrode active material layer on at least one surface of the current collector. The negative electrode active material layer includes: 1) a negative electrode active material comprising magnesium-containing silicon oxide particles, and a graphene coating layer surrounding the surface of the magnesium-containing silicon oxide particles, 2) a conductive material comprising single-walled carbon nanotubes (SWCNT), and 3) a binder. The graphene in the graphene coating layer has a D/G band intensity ratio of 0.8 to 1.5, where the D/G band intensity ratio is defined as the average value of the ratio of the maximum peak intensity of the D band at 1360±50 cm based on the maximum peak intensity of the G band at 1580±50 cm, as determined by Raman spectroscopy of the graphene.

* The negative electrode of the lithium secondary battery includes a graphene-coated magnesium-containing silicon oxide active material.
* The graphene coating layer has a specific D/G band intensity ratio.
* The negative electrode also includes a conductive material comprising single-walled carbon nanotubes and a binder.
* The graphene-coated active material improves the performance and stability of the negative electrode.
* The specific D/G band intensity ratio of the graphene coating layer ensures the desired properties of the negative electrode.

Potential applications of this technology:
* Lithium secondary batteries for various electronic devices such as smartphones, laptops, and electric vehicles.
* Energy storage systems for renewable energy sources like solar and wind power.

Problems solved by this technology:
* Improved performance and stability of lithium secondary batteries.
* Enhanced energy storage capacity and efficiency.
* Longer battery life and reduced degradation.

Benefits of this technology:
* Higher energy density and improved overall battery performance.
* Increased lifespan and durability of lithium secondary batteries.
* Enhanced safety and reliability of energy storage systems.
* Potential for faster charging and discharging capabilities.


==Original Abstract Submitted==

a negative electrode and lithium secondary battery including the same. the negative electrode includes: a current collector; and a negative electrode active material layer on at least one surface of the current collector. the negative electrode active material layer includes 1) a negative electrode active material including a mg-containing silicon oxide particles, and a graphene coating layer surrounding the surface of the mg-containing silicon oxide particles, 2) a conductive material including single-walled carbon nanotubes (swcnt), and 3) a binder. the graphene contained in the graphene coating layer has a d/g band intensity ratio of 0.8 to 1.5, and the d/g band intensity ratio of the graphene is defined as an average value of the ratio of the maximum peak intensity of d band at 1360�50 cmbased on the maximum peak intensity of g band at 1580�50 cm, as determined by raman spectroscopy of the graphene.



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