Abstract: The present invention relates to negative electrode carbon materials for lithium-ion batteries, and particularly to a lithium-ion battery negative electrode active material, a lithium-ion battery negative electrode, a lithium-ion battery, a battery pack and a battery-powered vehicle. In a pore structure, measured by N2 adsorption and desorption, of the lithium-ion battery negative electrode carbon particles, by using the total pore volume measured by BJH having a pore size of 2-200 nm as the reference, the sum of the volumes of pores with a pore size of 2-10 nm is 2-10%, the sum of the volumes of pores with a pore size of 10-100 nm is 30-65%, and the sum of the volumes of pores with a pore size of 100-200 nm is 30-65%, and the carbon particles have a BET specific surface area of 0.9-1.9 m2/g.

Abstract: The present disclosure provides a composite hydrophilic membrane electrode, a membrane capacitor cell, a preparation method and use thereof. The method for preparing the composite hydrophilic membrane electrode includes: mixing Li2CO3 with TiO2 evenly to obtain a mixture, and baking the mixture to obtain a Li2TiO3 precursor; mixing the Li2TiO3 precursor with graphene oxide evenly to obtain a Li2TiO3/graphene oxide composite material; calcining the Li2TiO3/graphene oxide composite material to obtain a Li2TiO3/reduced graphene oxide composite material; modifying the Li2TiO3/reduced graphene oxide composite material with tannic acid to obtain a modified active electrode material; and mixing the modified active electrode material with a solvent to obtain an active electrode slurry, applying the active electrode slurry onto a titanium plate, and baking the active electrode slurry to obtain the composite hydrophilic membrane electrode.

Abstract: The present disclosure discloses a 2.8 ?m and 3.5 ?m dual-wavelength mid-infrared fiber laser, which employs “0.98 ?m+1.15 ?m” pumping scheme, uses a fiber combiner to combine two pump lights into the double cladding Er-doped fluoride fiber. The Er ions in the ground state are first promoted to 4I11/2 level by the 0.98 ?m pump light, realizing 2.8 ?m lasing based on 4I11/2?4I13/2 transition, and further promoted to 4F9/2 level by the 1.15 ?m pump light, generating 3.5 ?m lasing based on 4F9/2?4I9/2 transition; followed by the 3.5 ?m laser transition, the Er ions would rapidly decay to 4I11/2 level via non radiative transition, realizing the re-population of 4I11/2 level, effectively enlarge the population inversion of 2.8 ?m transition, suppressing the self-termination of 2.8 ?m lasing and achieving 2.8 ?m and 3.5 ?m dual-wavelength cascaded lasing output.

Abstract: The present invention relates to negative electrode carbon materials for lithium-ion batteries, and particularly to a lithium-ion battery negative electrode active material, a lithium-ion battery negative electrode, a lithium-ion battery, a battery pack and a battery-powered vehicle. In a pore structure, measured by N2 adsorption and desorption, of the lithium-ion battery negative electrode carbon particles, by using the total pore volume measured by BJH having a pore size of 2-200 nm as the reference, the sum of the volumes of pores with a pore size of 2-10 nm is 2-10%, the sum of the volumes of pores with a pore size of 10-100 nm is 30-65%, and the sum of the volumes of pores with a pore size of 100-200 nm is 30-65%, and the carbon particles have a BET specific surface area of 0.9-1.9 m2/g.

Abstract: Various materials and polymers having electron deficient moieties and methods of synthesizing thereof are described herein. Specifically, a C—H bond activation method is disclosed wherein an electron deficient group having one or more activated C—H bonds is coupled to one or more aryl groups to afford materials or polymers which may be used in organic electronic and photonic applications.

Abstract: Various materials and polymers having electron deficient moieties and methods of synthesizing thereof are described herein. Specifically, a C—H bond activation method is disclosed wherein an electron deficient group having one or more activated C—H bonds is coupled to one or more aryl groups to afford materials or polymers which may be used in organic electronic and photonic applications.

Abstract: A method of performing eye correction is performed in an electronic device having an image processor, an image sensor, and a storage device. The image sensor captures image data, detects a pet face in the image data, and locates a plurality of candidate eye regions in the pet face. A classifier of the image processor verifies at least one eye region of the plurality of candidate eye regions, and the image processor recovers an abnormal pupil region of the at least one verified eye region.

Abstract: A method of performing eye correction is performed in an electronic device having an image processor, an image sensor, and a storage device. The image sensor captures image data, detects a pet face in the image data, and locates a plurality of candidate eye regions in the pet face. A classifier of the image processor verifies at least one eye region of the plurality of candidate eye regions, and the image processor recovers an abnormal pupil region of the at least one verified eye region.