ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY AND METHOD OF MAKING SAID ELECTRODE Russian patent published in 2010 - IPC H01M4/13 H01M10/52 

FIELD: physics.

SUBSTANCE: electrode for lithium secondary battery has a sheet-like current collector and a layer of active material deposited on said current collector. The layer of active material can absorb and release lithium and contains several columnar particles having at least one bend. The angle θ₁ formed by the direction of growth of the columnar particles from the base to the first bend of the columnar particles and the direction of the normal to the current collector is preferably 10° or more and less than 90°. When θ_n+1 is the angle formed by direction of growth of columnar particles from the n-th bend counted from the base of the columnar particles to the (n+1)th bend and by the direction of the normal to the current collector, and n is an integer which is equal to or greater than 1, θ_n+1 is preferably 0° or more and less than 90°.

EFFECT: high capacitance, improved charging and discharging periodic characteristics of the lithium secondary battery.

23 cl, 13 dwg, 7 tbl, 5 ex