Lithium Secondary Battery Structure Comprising Composite Conductive Current Collector

Abstract

A lithium secondary battery structure having a first electrode including a first conductive current collector having an active material layer formed on at least one surface; a second electrode including a second conductive current collector having an active material layer formed on at least one surface; and a plurality of battery units including a separator formed between active material layers of the first and second electrodes facing each other is provided. The first or second conductive current collector is a metal current collector, or a composite conductive current collector having a metal layer formed on a polymer substrate for each battery unit. The metal current collector to composite conductive current collector ratio within the total battery structure is in a range of 5:1 to 1:5.

CPC Classifications