A Review on the Conventional Capacitors, Supercapacitors, and Emerging Hybrid Ion Capacitors: Past, Present, and Future

Electrochemical energy storage (EES) devices with high‐power density such as capacitors, supercapacitors, and hybrid ion capacitors arouse intensive research passion. Recently, there are many review articles reporting the materials and structural design of the electrode and electrolyte for supercapacitors and hybrid capacitors (HCs), though these reviews always focus on individual supercapacitors or single HCs. Herein, the conventional capacitor, supercapacitor, and hybrid ion capacitor are incorporated, as the detailed description of conventional capacitors is very fundamental and necessary for the better understanding and development of supercapacitors and hybrid ion capacitors, which are often ignored.…

• NN
  National Natural Science Foundation of China

  Awards: 15052001, 2020JJ4175, 2020M682560, 2020RC2024
• HP
  Hunan Provincial Science and Technology Department

  Award: 2020RC2024
• CP
  China Postdoctoral Science Foundation

  Awards: 2020JJ4175, 2020M682560, 2020RC2024
• NS
  Natural Science Foundation of Hunan Province

  Awards: 2020JJ4175, 2020RC2024, 2020M682560
• CU
  Chinese Universities Scientific Fund

  Award: 15052001
• PR
  Postdoctoral Research Foundation of China

  Award: 2020M682560