智能终端续航技术发展趋势

Smart devices battery life technology trends

锂离子电池材料技术发展缓慢,导致商用化锂离子电池能量密度的提升难度较大。移动互联网时代的到来,使得智能终端设备的外形向超薄、超轻的便携式发展,为智能终端电池容量和设备续航带来了挑战。为了研究移动智能设备的续航能力,针对智能终端设备所广泛采用的锂离子电池技术,分析了锂离子电池中各个部分的技术情况;通过对智能手机设备的功耗分布和各硬件要素的技术迭代研究,分析了未来智能终端整机的功耗趋势和空间设计趋势。分析表明,智能终端设备显示屏的功耗占整机功耗的主要部分,采用像素渲染技术可以有效降低显示屏模组的逻辑功耗和背光功耗,同时整机印制电路板（PCB）上硬件元素的不断集成,PCB走线工艺能力越来越精细化为电池的体积留出更多的空间。智能终端产品中的多种硬件元素协同优化,可以有效实现可靠的续航能力。

The slow development of the lithium ion battery material technology hampers the growth of the energy density of commercial lithium ion batteries. The form of smart devices develops in the direction of portability e.g. ultra-thin and ultra-light along with the arrival of the mobile internet era, which poses a great challenge to the battery capacity and the device stand-by time. This paper reviews the methods of improving the stand-by ability of smart devices, focusing on the technology of the lithium ion battery widely used in smart device and the technical status of the key elements in the lithium ion battery cell. The tendency of the device power consumption and the machine structure design of smartphones are analyzed, including the power eonsumption distribution and the technical upgrading of the hardware in the smartphone field. The display module is shown to consume most power of a smart device. The logic power consumption and the BLU power consumption could be reduced effectively by using the pixel rendering technology. With the integration in the PCB and the processability of the PCB layout developments of the hardware elements, a larger space in the device will be used for a larger volume battery. The battery life will be prolonged with the multiple coordination and optimization of hardware elements of the smart devices.