The combination of materials determines the characteristics of the battery, including its energy and power density, safety, longevity and cost.

材料之间的结合决定了电池的特性，包括它的能量和功率密度，以及安全性、使用寿命和成本。

youdao

The battery under development has demonstrated excellent performance in terms of energy and power density, efficiency, 500a charge and discharge current, internal resistance and maintenance work.

并表明，开发中的电池在能量和功率密度、效率、500a充电和放电电流、内部电阻和维护等各方面都有极好的性能。

youdao

The objective of the integrated design and development activity is to further improve power density, increase energy efficiency, and to reduce manufacturing cost.

综合设计和开发活动的目标是为了进一步改善功率密度，提高能量效率并减少制造成本。

youdao

While conspiracy theorists may want to believe that Big Oil, Big Coal and Big Nuclear are stifling the growth of renewables, the simple truth is that coal, oil, natural gas and nuclear can satisfy the Four Imperatives: power density, energy density, cost and scale.

FORBES: Magazine Article

The batteries themselves make use of the same zinc air technology used in hearing aid batteries, and apparently have the highest energy density of any portable consumer power solution, which translates to about three times the runtime of a similarly sized alkaline or lithium ion battery.

ENGADGET: Energizer introduces thin, powerful Zinc Air Prismatic battery

The figure is a measure of circuit track density and broadly relates to processing power and energy consumption.

BBC: Intel launches Oak Trail tablet processor