When the battery surface temperature is in the phase change temperature range, the cooling effect is not obvious by continuing increasing material thickness and convective heat transfer coefficient.

当电池表面温度处于相变材料的相变温度 区间时，继续增加材料厚度和对流换热系数散热效果不显著；

youdao

Initially, the plan to power the robot involved covering its surface with solar cells that would charge a lithium polymer battery inside.

最初计划用覆盖在机器人表面的太阳能电池板给内部的锂聚合物电电池充电来给机器人供电。

youdao

The oxygen, which will be drawn in through a surface of the battery exposed to air, reacts within the pores of the carbon to discharge the battery.

通过电池暴露在空气中的表面所吸入的氧气在碳孔中进行反应为电池放电。

youdao

On our standard Windows battery rundown test, in which we fix the display brightness and loop a video endlessly to exhaustion, the Surface Pro scored just three hours and 46 minutes, despite having a 42.5Wh battery a third larger than the 31.5Wh pack in the Surface RT.

FORBES: Links 6 Feb: Microsoft's Surface Pro Reviews. Not So Good Actually

This reality forced Microsoft to come up with its own magnesium chassis, highly compressed touch-stack for the screen, and a host of other patents and innovations to hit 1.5 pounds with all-day battery life, while not turning the Surface into a heavy, bulky device.

CNN: Microsoft Surface tablet goes on sale for $499

Battery efficiency, lifespan and even safety could be vastly improved, the researchers believe, by increasing the surface area of the active materials that make up the battery electrodes.

FORBES: Magazine Article