| 摘要 |
PURPOSE: To elongate a service life of a positive electrode base plate in a chargeable nonaqueous electrolyte secondary battery. CONSTITUTION: A skin film, having an uneven surface is formed of a core material having three dimensional mesh-like communication pores and using a strong metal such as Ni and flame coated aluminum thereon, is formed on a positive electrode base plate. Accordingly, strength is excellent, high potential errosion resistance utilizing an aluminum characteristic is maintained, and retentivity of active substance is remarkably improved. A sufficiently long service life can be maintained even when discharging and charging are repeated. |
