They are composed of four different materials, which must be uniformly deposited on a backing material, or substrate.

它们由四种不同元素组成。四元素沉积在一基质元素中。

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PV cladding materials can now be obtained in different patterns and colours, depending upon the nature of the cells and the backing material to which they are applied.

PV覆盖材料现在在样式和颜色上都有不同选择，这取决于其采用的电池特性和背基材料。

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Simbol Materials, a California-based startup, is piggy-backing on geothermal development in the geothermal-rich Salton Sea field, with plans to extract lithium from geothermal brine for use in innovative battery applications like electric cars.

FORBES: Sleeping Geothermal Giant Stirs