Electrochromically switched, gas-reservoir metal hydride devices with application to energy-efficient windows

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Proof-of-principle gas-reservoir MnNiMg electrochromic mirror devices have been investigated. In contrast to conventional electrochromic approaches, hydrogen is stored (at low concentration) in the gas volume between glass panes of the insulated glass units (IGUs). The elimination of a solid state ion storage layer simplifies the layer stack, enhances overall transmission, and reduces cost. The cyclic switching properties were demonstrated and system durability improved with the incorporation a thin Zr barrier layer between the MnNiMg layer and the Pd catalyst. Addition of 9 percent silver to the palladium catalyst further improved system durability. About 100 full cycles have been demonstrated before ... continued below

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Anders, Andre; Slack, Jonathan L. & Richardson, Thomas J. May 5, 2008.

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Proof-of-principle gas-reservoir MnNiMg electrochromic mirror devices have been investigated. In contrast to conventional electrochromic approaches, hydrogen is stored (at low concentration) in the gas volume between glass panes of the insulated glass units (IGUs). The elimination of a solid state ion storage layer simplifies the layer stack, enhances overall transmission, and reduces cost. The cyclic switching properties were demonstrated and system durability improved with the incorporation a thin Zr barrier layer between the MnNiMg layer and the Pd catalyst. Addition of 9 percent silver to the palladium catalyst further improved system durability. About 100 full cycles have been demonstrated before devices slow considerably. Degradation of device performance appears to be related to Pd catalyst mobility, rather than delamination or metal layer oxidation issues originally presumed likely to present significant challenges.

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  • Journal Name: Thin Solid Films

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  • Report No.: LBNL-1089E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 940399
  • Archival Resource Key: ark:/67531/metadc897857

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  • May 5, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 12:13 p.m.

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Anders, Andre; Slack, Jonathan L. & Richardson, Thomas J. Electrochromically switched, gas-reservoir metal hydride devices with application to energy-efficient windows, article, May 5, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc897857/: accessed July 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.