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US 2023/0205031 A1Published application
Electrochromic composition, electrochromic layer and electrochromic device
AssigneeIndustrial Technology Research Institute
InventorsHsiang-Jui CHEN, Yi-Chang DU, Jauder JENG, Jheng-Ying LI
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Abstract
An electrochromic composition, an electrochromic layer and an electrochromic device are provided. The electrochromic composition includes 20-80 parts by weight of polyimide, 20-80 parts by weight of silicon oxide nanoparticle, 1-50 parts by weight of electrochromic material, and 850 to 1200 parts by weight of solvent. The polyimide is a reaction product of a dianhydride and a diamine. The dianhydride and the diamine are as defined in the specification.
Claims21
An electrochromic composition, comprising:
- 20 to 80 parts by weight of a polyimide, wherein the polyimide is a reaction product of a dianhydride and a diamine, wherein the dianhydride is
- or a combination thereof;
- the diamine is
- or a combination thereof;
- and, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R41, R42, R43, R44, R45, or R46 are independently hydrogen, fluorine, C1-3 alkyl group, or C1-3 fluoroalkyl group;
- 20 to 80 parts by weight of a silicon oxide nanoparticle, wherein a total weight of the polyimide and the silicon oxide nanoparticle is 100 parts by weight;
- 1 to 50 parts by weight of an electrochromic material;
- and
- 850 to 1200 parts by weight of an organic substance.
6 more elements
Dependencies are inferred from the claim text.