Article for production of or use in an electrochromic device

    公开(公告)号:WO2019030270A1

    公开(公告)日:2019-02-14

    申请号:PCT/EP2018/071481

    申请日:2018-08-08

    Applicant: BASF SE

    Inventor: GOEBEL, Michael

    Abstract: The present invention relates to compositions (also referred to as inks) comprising electrochromic nanoobjects, to an article for production of or use in an electrochromic device, to a process for producing said article and to a process for preconditioning a multilayer structure for production of or use in an electrochromic device.

    ELECTROCHROMIC DEVICES
    2.
    发明申请
    ELECTROCHROMIC DEVICES 审中-公开
    电致变色器件

    公开(公告)号:WO2017137396A1

    公开(公告)日:2017-08-17

    申请号:PCT/EP2017/052648

    申请日:2017-02-07

    Applicant: BASF SE

    Abstract: Described are electrochromic devices and compositions as well as manufacturing methods for making such electrochromic devices by printing or wet processing of the compositions. The compositions are in the form of a suspension and comprise two or more monomers, nanoparticles of an electrochromic metal oxide, one or more metal salts of the form (M)z(R)y, where M is a metal cation and R is the corresponding salt anion, a carrier liquid and a solvent. The compositions are polymerised to form a composite layer comprising a polymer matrix that hosts the electrochromic nanoparticles and the electrolyte. At least a part of the metal salts (e.g. zinc acetate) is physically adsorbed onto the surface of the nanoparticles and acts as a dispersant.

    Abstract translation: 描述了电致变色装置和组合物以及通过印刷或湿法处理组合物来制造这种电致变色装置的制造方法。 所述组合物为悬浮液形式并且包含两种或更多种单体,电致变色金属氧化物的纳米粒子,一种或多种形式为(M)z(R)y的金属盐,其中M为金属阳离子且R为 相应的盐阴离子,载液和溶剂。 将组合物聚合以形成包含容纳电致变色纳米粒子和电解质的聚合物基质的复合层。 至少一部分金属盐(例如乙酸锌)被物理吸附到纳米颗粒的表面上并起到分散剂的作用。

    PROCESS AND APPARATUS FOR SWITCHING REDOXACTIVE CELLS
    4.
    发明申请
    PROCESS AND APPARATUS FOR SWITCHING REDOXACTIVE CELLS 审中-公开
    用于切换红细胞的方法和设备

    公开(公告)号:WO2017153403A1

    公开(公告)日:2017-09-14

    申请号:PCT/EP2017/055316

    申请日:2017-03-07

    Applicant: BASF SE

    Abstract: The invention relates to a process for switching an electrochromic cell (100) comprising at least a first electrode layer (106) and a second electrode layer (108) each capable of reversibly inserting ions. Further the cell (100) comprises an ion-conducting layer (110) that separates the first electrode layer (106) and the second electrode layer (108) and a temperature sensor (216) for measuring a temperature (T) in or on or in the vicinity of the electrochromic cell (100). Moreover, a first contact member (101) is electronically connected with the first electrode layer (106) and a second contact member (102) is electronically connected with the second electrode layer (108), wherein the first (106) and the second electrode layer (108) are counter electrodes to each other. Furthermore, at least said first electrode layer (106) comprises an organic polymer matrix and dispersed within said organic polymer matrix an electrochromic material, electronically conductive nanoobjects (112) and an electrolyte (114) dissolved in a solvent. Further, the process comprises to measure the current (iC) flowing through the cell (100) if a voltage (U C ) is applied to the electrode layers (106, 108), and applying a voltage (U C ) to contact members (101, 102) and varying the applied voltage (UC) as a function of current (iC), such that the voltage (U C ) generated between the electrode layers (106, 108) is kept within predetermined temperature (T) dependent safe redox limits and such that the cell current (i C ) is limited to predetermined temperature-dependent limits. Moreover, the applied voltage (U C ) is only increased if the cell current (i C ) is less than a maximum cell current (i max ), determined according to: i max = j max x Area + (T-T 0 ) x F, where j max is a predetermined maximum current density, Area is the active cell area, T is the temperature of the electrochromic cell (100) measured with the temperature sensor (216), T 0 is a reference temperature, and F a factor. Further, the invention relates to an apparatus (200) and a system (300) for performing the process.

    Abstract translation: 本发明涉及一种用于开关至少包括第一电极层(106)和第二电极层(108)的电致变色电池(100)的方法,所述电致变色电池(100)各自能够可逆地插入离子。 此外,电池(100)包括分隔第一电极层(106)和第二电极层(108)的离子传导层(110)和用于测量温度(T)中或其之上的温度(T)的温度传感器(216) 在电致变色电池(100)附近。 此外,第一接触构件(101)与第一电极层(106)电连接,并且第二接触构件(102)与第二电极层(108)电连接,其中第一电极层(106)和第二电极 层(108)是彼此相对的电极。 此外,至少所述第一电极层(106)包含有机聚合物基体并且在所述有机聚合物基体内分散有电致变色材料,溶解在溶剂中的电子导电纳米对象(112)和电解质(114)。 此外,该方法包括:如果向电极层(106,108)施加电压(U,C),并且施加电压(U,V),则测量流过电池单元 U C)与接触构件(101,102)并且根据电流(i C)改变所施加的电压(UC),使得电压(U C) 在电极层(106,108)之间产生的电流保持在预定温度(T)依赖的安全氧化还原限制内,并且使得电池电流(I C)限于预定的与温度相关的限制。 此外,如果电池电流(i C)小于最大电池电流(i max ),根据以下公式确定:i max = j max×Area +(TT 0)x F,其中j 是预定的最大电流密度,Area是有源单元面积,T是用温度传感器(216)测量的电致变色单元(100)的温度,T 0是参考温度 ,F是一个因素。 此外,本发明涉及用于执行该过程的装置(200)和系统(300)。

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