{"id":65971,"date":"2022-08-01T09:31:47","date_gmt":"2022-08-01T07:31:47","guid":{"rendered":"https:\/\/packaging-journal.de\/?p=65971"},"modified":"2022-08-01T09:31:47","modified_gmt":"2022-08-01T07:31:47","slug":"paper-battery-with-water-switch-from-empa","status":"publish","type":"post","link":"https:\/\/packaging-journal.de\/en\/papierbatterie-mit-wasserschalter-von-empa\/","title":{"rendered":"Empa develops paper battery with water switch"},"content":{"rendered":"
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A team of Empa researchers has developed a disposable paper battery that can be activated by water. This could be used to power a wide range of small disposable electronic devices with low power consumption, such as intelligent labels for tracking objects.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The from Empa<\/a>-The battery developed by researcher Gustav Nystr\u00f6m and his team consists of at least one electrochemical cell measuring around one square centimetre. Three different inks are printed on a rectangular strip of paper.<\/strong> Salt is spread throughout the paper strip and one of the two shorter ends of the strip is dipped in wax. An ink containing graphite flakes is printed on one side of the paper and acts as the positive pole of the battery - the cathode; a second ink containing zinc powder is printed on the reverse side and acts as the negative pole of the battery - the anode.<\/p>

A third ink, containing graphite flakes and carbon black, is printed on both sides of the paper over the other two inks. This forms the current collectors<\/strong>which connect the two poles of the battery to two wires located at the end of the paper strip dipped in wax.<\/p>

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If a small amount of water is added, the salt contained in the paper dissolves, charged ions are released and the electrolyte becomes ionically conductive. This step activates the battery:<\/strong> So-called redox reactions (a reduction and an oxidation) generate an electric current that can be used to operate an electrical device.<\/p>

The special thing about the new battery is that the fact that paper, zinc and the other components are biodegradable means that the battery can be used for a long time. Significantly minimise the environmental impact of disposable electronics with low power consumption <\/strong>leave.<\/p>

Source<\/em>: Empa<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Science and research - More news<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\"The<\/div><\/a>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tEU project for the sustainable production of bioplastics\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tThe EU project Bio-Plastics Europe is working on the sustainable production of bio-based and biodegradable plastics.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\"Thanks<\/div><\/a>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tTetra Pak launches research project\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tTogether with the Swedish research centre MAX IV in Lund, the packaging manufacturer Tetra Pak is launching a project to research fibre materials. The aim is to gain insights into the nanostructure of packaging materials.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\"Granules\"<\/div><\/a>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tUpcyclePET project develops new material from PET bottles\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tThe \"UpcyclePET\" research project has investigated how industrial plastic can be recovered from used PET bottles and developed a new material.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tUniversity of Hohenheim participates in EU research project MyPack\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tIn the MyPack project, the participating researchers and companies are driving forward the market launch of innovative and sustainable packaging based on renewable raw materials. The University of Hohenheim in Stuttgart is also involved. Measured by the amount of funding, the project is one of the most important at the university.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tScientists want to seal big bags airtight\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tIn a joint project, M\u00fcnster University of Applied Sciences and the company EMPAC are looking for a method to better seal pharmaceutical containers.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\"Food<\/div><\/a>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tOptimised closure technology for food cans\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tAre material savings still possible in the production of food cans? The latest research results show that the potential for a further reduction in thickness has probably not yet been exhausted.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"A team of Empa researchers has developed a disposable paper battery that can be activated by water. This could be used to power a wide range of small disposable electronic devices with low power consumption, such as intelligent labels for tracking objects.","protected":false},"author":20,"featured_media":65972,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"__cvm_playback_settings":[],"__cvm_video_id":"","rank_math_description":"Ein Empa-Forscherteam hat eine Einwegbatterie aus Papier entwickelt, mit der u. a. intelligente Etiketten zum Tracking von Objekten betrieben werden k\u00f6nnten.","rank_math_focus_keyword":"Empa","rank_math_title":"","csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[21],"tags":[59781,42,39],"class_list":{"0":"post-65971","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-verpackungstechnik","8":"tag-empa","9":"tag-etikettieren-kennzeichnen-codieren","10":"tag-verpackungstechnik","11":"cs-entry","12":"cs-video-wrap"},"acf":[],"vimeo_video":null,"_links":{"self":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/posts\/65971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/comments?post=65971"}],"version-history":[{"count":0,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/posts\/65971\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/media\/65972"}],"wp:attachment":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/media?parent=65971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/categories?post=65971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/tags?post=65971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}