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    • 10. 发明授权
    • Electrochromic device
    • 电致发光器件
    • US5124080A
    • 1992-06-23
    • US790095
    • 1991-11-01
    • Mani ShabrangSusan J. Babinec
    • Mani ShabrangSusan J. Babinec
    • C08F214/26C08F16/14C08F216/14C09D127/12C09D127/18G02F1/15H01B1/06H01B1/12
    • H01B1/122G02F1/1525
    • An improvement of electrochromic devices incorporating a perfluorosulfonic acid polymer ion conducting layer interposed between a working electrode and a counter electrode. The improvement relates to the composition of the perfluorosulfonic acid polymer of the ion conducting layer. In the present invention the composition of the perfluorosulfonate polymer layer is a polymer comprising a substantially fluorinated backbone which has recurring pendant groups attached thereto represented by the formula --O--(CFR'.sub.f).sub.b --(CFR.sub.f).sub.a --SO.sub.3 --, where a=0-3, b=0-3, a+b=at least 1, and R.sub.f and R'.sub.f are independently selected from the group consisting of a halogen and a substantially fluorinated alkyl group having one or more carbon atoms. One example of such a polymer is the copolymer of tetrafluoroethylene and 1,1,2,2-tetrafluoro-2-((trifluoroethenyl)oxy)ethane sulfonic acid having an equivalent weight of about 800. The primary benefit of the present invention is that the electrochromic device darkens sufficiently to be useful when the device is operated at high temperature such as can be encountered in an automobile electrochromic sun roof on a sunny day in a hot climate.
    • 包含插入在工作电极和对电极之间的全氟磺酸聚合物离子传导层的电致变色装置的改进。 该改进涉及离子传导层的全氟磺酸聚合物的组成。 在本发明中,全氟磺酸盐聚合物层的组成是包含基本上氟化的主链的聚合物,其具有由式-O-(CFR'f)b - (CFRf)a-SO 3 - 表示的连接有重复的侧基,其中a = 0-3,b = 0-3,a + b =至少1,Rf和R'f独立地选自卤素和具有一个或多个碳原子的基本氟化的烷基。 这种聚合物的一个实例是四氟乙烯和当量为约800的1,1,2,2-四氟-2 - ((三氟乙烯基)氧基)乙磺酸的共聚物。本发明的主要优点是 当在高温下操作该装置时,电致变色装置充分变暗,例如在炎热气候的阳光灿烂的日子可能在汽车电致变色阳光屋顶遇到的。