Electrically controlled ion transport device 1

Full text: EP 1862799 (A1)

Summary

A device for electrically controlled transport of ions between a source (2) and a target (4) electrolyte, comprising a source electrode (1) and a target electrode (3). The electrodes are each capable of conducting electrons and ions, and the source electrode (1) is arranged to receive ions from the source electrolyte (2) and the target electrode (3) is arranged to release ions to the target electrolyte (4).

The device further comprises an ion-conductive channel (5), arranged to receive ions from the source electrode (1) and to release ions to the target electrode (3).

Moreover, the ion-conductive channel (5) is arranged to provide an ionic connection between the source (1) and the target (3) electrodes. The electrodes (1,3) and the ion-conductive channel (5) are formed of solid or semi-solid materials which are directly or indirectly attached to a support.

The device also comprises means for limiting an electronic current between said source (1) and said target (3) electrodes, such that at least after a voltage is applied across said channel (5) a potential difference between said source (1) and target (3) electrodes is maintained, which potential difference effects ion transport from said source (1) to said target (3) electrode. An apparatus for transporting ions to or from a cell. Use of the device for transporting ions to or from a cell. Methods of operating the device.


Electrically controlled ion transport device 2

Full text: EP 2232260 (A1)

Summary

The present invention relates to devices for electrically controlled transport of ions between a source and a target electrolyte, comprising: a first source electrode (101) and a first target electrode (104), each capable of conducting ions and electrons, wherein said source electrode is arranged to receive ions from said source electrolyte (102) and said target electrode is arranged to release ions to said target electrolyte (105), and means for retaining one of said source and target electrolytes on the device, which means are arranged such that each electrolyte is in contact with one of said electrodes, and a first ion-conductive channel (103), arranged to receive ions from said source electrode, to release ions to said target electrode and to provide an ionic connection between said source and said target electrodes, wherein said electrodes (101,104); and said ion-conductive channel are formed of solid or semi-solid materials which are directly or indirectly attached to a support (107), further comprising means for limiting an electronic current between said source and said target electrodes, such that at least after a voltage is applied across said channel a potential difference between said source and target electrodes is maintained, which effects ion transport from said source to said target electrode. The present invention further relates to arrangements of and methods using such devices.


Electrically controlled ion transport device 3

Full text: EP 2265325 (A1)

Summary

A device for electrically controlled of ions, comprises a first electrolyte; a first electrode, which is arranged in direct or indirect contact with the first electrolyte, an encapsulation; and an ion conductor, which is arranged to receive and/or deliver ions from/to the first electrolyte.

The encapsulation is arranged to effectively enclose the first electrolyte, and the ion conductor is arranged to transport ions from/to an outside of the encapsulation.


Selective ion transport device

Full text: WO 2010119069 (A1)

Summary

A device for controlled transport of ions is provided comprising an ion source element (100a) and an ion target element (100b) both conducting ions of a first class e.g. cations, and an ion selective element (101) which conducts ions of a second class e.g. anions.

The device further comprises a transport element (102), which receives ions from the ion source element and releases them to the ion target element in response to an electrochemical potential difference provided across the ion transport element. In use a first electrochemical potential is applied to the control element (101), which increases the concentration of ions of said second class, which increased concentration in turn increases the ion transport rate of ions of said first class in the ion transport element (102).


Electronic release

Full text: WO 2011124253 (A2)

Summary

The present disclosure relates to a device comprising a conductive substrate surface (19), at least one layer of a conductive polymer (14) deposited on the surface (19), a first electrolyte (13) arranged in contact with the conductive polymer layer, and a counter electrode (11), arranged in contact with the first electrolyte (13), such that a potential difference can be applied between the conductive substrate (15) and the counter electrode (11).

The conductive polymer (14), in a first state, before applying the potential difference, exhibits a first adhesive capacity, wherein the conductive polymer layer (14) is substantially attached to the conductive substrate surface (19). In a second state, subsequent to application of the potential difference, the conductive polymer (14), exhibits a second adhesive capacity, such that at least a portion of the conductive polymer layer (14) is substantially released from the conductive substrate surface (19).