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Stretchable 2D planar SCs with excellent properties of small size, low weight, excellent lifespan, high security and easy integration have become a preferred choice as energy storage to power the wearable electronics [37, 61–63]. There are two main categories including layer by layer sandwich structure and micro supercapacitors (MSCs). The fabrication method of the 2D planar stretchable SCs is similar to 1D fiber shaped SCs. One is via embedding rigid independent devices to the stretchable substrate or establishing serpentine interconnects between rigid devices to realize stretchability. Another one is replacing the rigid unit by stretchable component. In this section, we will introduce the typical fabrication method reported during the last few years.