NOVELTY - The laminated sheet comprises: a weather-resistant, outer coating layer comprising a polymer composite membrane; an inner sealant layer comprising a heat-sealable polymer; and a barrier layer interposed between the outer coating layer and the inner sealant layer. The heat-sealable polymer has physical properties that are different from physical properties of the polymer composite membrane. A metallic layer is formed on one side and/or both sides of the barrier layer. The outer coating layer is made of first polymers having different physical properties to form a regular or irregular pattern.    USE - The laminated sheet is useful in a case, which is useful in a battery i.e. lithium ion battery, lithium polymer battery and lithium ion polymer battery of a battery pack of a device (all claimed) such as cellular phones, handheld computers, smart phones, smart pads, netbook computers, electric vehicles comprising light electric vehicles, hybrid electric vehicle and plug-in hybrid electric vehicle, and power storage systems.    ADVANTAGE - The laminated sheet exhibits increased surface area.    DETAILED DESCRIPTION - The laminated sheet comprises: a weather-resistant, outer coating layer comprising a polymer composite membrane; an inner sealant layer comprising a heat-sealable polymer; and a barrier layer interposed between the outer coating layer and the inner sealant layer. The heat-sealable polymer has physical properties that are different from physical properties of the polymer composite membrane. A metallic layer is formed on one side and/or both sides of the barrier layer. The outer coating layer is made of first polymers having different physical properties to form a regular or irregular pattern, and comprises a polymer composite layer. An outer coating layer made of a second polymer is formed on the outer coating layer made of the first polymers. The physical properties are glass-transition temperature, coefficient of thermal expansion and mechanical coefficient of expansion. INDEPENDENT CLAIMS are included for:    (1) a battery case; and    (2) a battery.