A positive electrode (1) for non-aqueous electrolyte secondary batteries, including collector (11) and active material layer (12), wherein: integrated value (a) is 3 to 15% (for frequency of diameters of 1 μm or less), and frequency (b) is 8 to 20% (for diameter with a maximum frequency). A positive electrode (1) for non-aqueous electrolyte secondary batteries, including collector (11) and active material layer (12), wherein assuming two directions perpendicular to thickness direction of collector (11) and mutually orthogonal as first and second directions, average thickness a1, maximum thickness b1, minimum thickness c1 in thickness distribution in the first direction, and thickness d1 (largest absolute value of difference from a1) satisfy 0.990≤(d1/a1)≤1.010 and (b1−c1)≤5.0 μm, and average thickness a2, maximum thickness b2, minimum thickness c2 in thickness distribution in the second direction, and thickness d2 (largest absolute value of difference from a2) satisfy 0.990≤(d2/a2)≤1.010 and (b2−c2)≤5.0 μm.

The electrode structure for electronic devices according to the present invention comprises a powdered electrode material, and carbon nanotubes having a volume resistivity of not more than 2×10.sup.−2 Ω.Math.cm.

To provide a negative electrode of a lithium ion battery excellent in cycle life characteristics. The negative electrode for a lithium ion battery includes an Si-based material as an active material, wherein a skeleton-forming agent including a silicate having a siloxane bond or a phosphate having an aluminophosphate bond as an ingredient is present on the surface and inside of an active material layer, and the skeleton of the active material is formed with the skeleton-forming agent.

A method of preparing an electrode for a secondary battery, including: (i) a process of preparing a current collector in which through-pores or holes are formed and an electrode slurry containing an electrode active material; (ii) a process of bringing a shielding film into close contact with one surface of the current collector to shield pores or holes on the one surface of the current collector; (iii) a process of coating the electrode slurry on the other surface of the current collector to which the shielding film is not attached, and primarily drying to prepare an interim electrode; (iv) a process of removing the shielding film from the interim electrode; and (v) a process of secondarily drying the interim electrode to prepare the electrode.

A method of manufacturing an electrode for a secondary battery includes preparing an electrode current collector in which a plurality of through-holes are formed; applying a first slurry including an electrode active material, a binder, and a conductive material to at least one surface of the electrode current collector; and applying a second slurry including an electrode active material, a binder, and a conductive material on the first slurry. In manufacturing an electrode including an electrode current collector with a plurality of through-holes, processability may be secured by preventing leakage of a slurry, and thus, a uniform electrode mixture layer may be formed.

The present technology relates to a positive electrode for a lithium secondary battery and a lithium secondary battery including the positive electrode. The positive electrode includes: a safety function layer arranged on a positive electrode current collector; and a positive electrode mixture layer arranged on the safety function layer. Herein, the safety function layer is formed of a multi-layer structure of two or more layers including a first safety function layer contacting the positive electrode current collector, and a second safety function layer arranged on the first safety function layer, and the second safety function layer is obtained by mixing a composition of the first safety function layer with a composition of the positive electrode mixture layer.

Provided is a fabrication method of a multi-layered electrode for a battery including (a) applying a binder solution including magnetic particles on a current collector, (b) applying a magnetic field to the current collector to which the binder solution is applied, and (c) applying an electrode slurry including an electrode active material on the binder solution.

A battery comprises a housing, an electrolyte disposed in the housing, a cathode disposed in the housing, an anode disposed in the housing and comprising an anode material comprising: zinc or zinc oxide, an electrocoagulant material selected from the group consisting of: aluminum, iron, titanium, calcium, zirconium, a hydroxide thereof, a salt thereof, an oxide thereof, and a combination thereof, and a binder.

Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector.

An amorphous silicon-carbon composite, a method for preparing the amorphous silicon-carbon composite using a pyrolysis method, a negative electrode for a lithium secondary battery, and a lithium secondary battery including the same.