薄膜电容器上游主要包括基膜、金属箔、导线、外包装等，其中，基膜是核心原材料，材料的差异会使薄膜电容器体现出不同的性能。

　　The upstream of thin film capacitor mainly includes base film, metal foil, wire, outer package, etc. among them, the base film is the core raw material, and the difference of material will make the film capacitor show different performance.

　　薄膜电容器由于其拥有耐高压、无极性、频率响应广、温度特性好等优点，下游应用广泛，主要分为传统领域和新领域，传统领域包括家电、照明、工控等；新兴领域包括风电光伏、新能源汽车等。

　　Due to its advantages of high voltage resistance, non polarity, wide frequency response and good temperature characteristics, thin film capacitors are widely used in the downstream, which are mainly divided into traditional fields and new fields. The traditional fields include home appliances, lighting, industrial control, etc.; emerging fields include wind power photovoltaic, new energy vehicles, etc.

　　长期来看，新能源汽车将会成为行业增长的核心驱动。

　　In the long run, new energy vehicles will become the core driver of industry growth.

　　薄膜电容器产业链

　　Film capacitor industry chain

　　从下游应用来看，传统领域的薄膜电容需求较为平稳，但是新兴领域，光伏发电、风力发电等行业都为塑料薄膜电容行业带来了新的机遇。

　　From the perspective of downstream applications, the demand for film capacitors in traditional fields is relatively stable, but emerging fields, such as photovoltaic power generation and wind power generation, have brought new opportunities to the plastic film capacitor industry.

　　以新能源汽车为例，直流支撑电容是新能源汽车中的关键器件。薄膜电容器替代铝电解电容器成为新能源汽车直流支撑电容首选。为了提高输出功率，新能源汽车的母线电压有不断提高的趋势，这对直流支撑电容的性能提出了更高的要求。

　　Taking new energy vehicle as an example, DC support capacitor is the key device in new energy vehicle. Thin film capacitor is the first choice of DC support capacitor for new energy vehicles instead of aluminum electrolytic capacitor. In order to improve the output power, the bus voltage of new energy vehicles has a trend of increasing, which puts forward higher requirements for the performance of DC support capacitor.

　　相比铝电解电容器，薄膜电容器在安全性、耐压能力、寿命上明显优于铝电解电容器。同时金属化膜以及膜上金属分割技术的出现，使得薄膜电容器的体积越来越小，成本也越来越低，从而使得薄膜电容替代铝电解电容成为新能源汽车直流支撑电容的首选。

　　Compared with aluminum electrolytic capacitor, thin film capacitor is superior to aluminum electrolytic capacitor in safety, withstand voltage ability and life. At the same time, the appearance of metallized film and metal segmentation technology on the film makes the volume of thin film capacitor smaller and smaller, and the cost is also lower and lower, which makes the thin film capacitor replace aluminum electrolytic capacitor as the first choice of DC support capacitor for new energy vehicles.

　　目前像丰田普锐斯、model3、比亚迪“秦”等车型都采用薄膜电容器作为直流支撑电容。

　　At present, such as Toyota Prius, model 3, BYD "Qin" and other models use thin film capacitor as DC support capacitor.