File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Liquid-free Al-air batteries with paper-based gel electrolyte: A green energy technology for portable electronics

TitleLiquid-free Al-air batteries with paper-based gel electrolyte: A green energy technology for portable electronics
Authors
KeywordsPaper-based
Gel electrolyte
Liquid-free
Al-air battery
Flexible battery
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jpowsour
Citation
Journal of Power Sources, 2019, v. 437, p. article no. 226896 How to Cite?
AbstractIn this work, a lightweight, ultrathin and flexible paper-based gel electrolyte is developed for liquid-free Al-air batteries, which employs a natural cellulose paper to store an alkaline gel. The as-fabricated electrolyte can be applied in either mechanical-rechargeable or single-use Al-air batteries, providing an open-circuit voltage (OCV) of 1.5 V and a peak power density around 3.5 mW cm−2. In addition, the battery discharge specific capacity is as high as 900 mA h g−1 even with low-purity Al. Moreover, a flexible Al-air battery can be obtained, which exhibits a stable performance under different bending angles. By optimizing the electrolyte properties including polymer concentration, gel loading and solution casting time, the battery power output can be further improved to 6.4 mW cm−2. Finally, two stacking strategies are investigated for developing Al-air battery packs, including both vertical stacking and planar stacking. Benefited from the complete ionic isolation among the single cells, both stacking strategies are demonstrated viable, with a normal OCV of 5.6 V for a 4-cell stack and a stacking efficiency as high as 87.5%. Such kind of liquid-free Al-air batteries are especially suitable for powering portable electronic devices with small rated power.
Persistent Identifierhttp://hdl.handle.net/10722/289738
ISSN
2020 Impact Factor: 9.127
2020 SCImago Journal Rankings: 2.139
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Y-
dc.contributor.authorPAN, W-
dc.contributor.authorKWOK, YH-
dc.contributor.authorZhang, H-
dc.contributor.authorLu, XJL-
dc.contributor.authorLeung, YCD-
dc.date.accessioned2020-10-22T08:16:45Z-
dc.date.available2020-10-22T08:16:45Z-
dc.date.issued2019-
dc.identifier.citationJournal of Power Sources, 2019, v. 437, p. article no. 226896-
dc.identifier.issn0378-7753-
dc.identifier.urihttp://hdl.handle.net/10722/289738-
dc.description.abstractIn this work, a lightweight, ultrathin and flexible paper-based gel electrolyte is developed for liquid-free Al-air batteries, which employs a natural cellulose paper to store an alkaline gel. The as-fabricated electrolyte can be applied in either mechanical-rechargeable or single-use Al-air batteries, providing an open-circuit voltage (OCV) of 1.5 V and a peak power density around 3.5 mW cm−2. In addition, the battery discharge specific capacity is as high as 900 mA h g−1 even with low-purity Al. Moreover, a flexible Al-air battery can be obtained, which exhibits a stable performance under different bending angles. By optimizing the electrolyte properties including polymer concentration, gel loading and solution casting time, the battery power output can be further improved to 6.4 mW cm−2. Finally, two stacking strategies are investigated for developing Al-air battery packs, including both vertical stacking and planar stacking. Benefited from the complete ionic isolation among the single cells, both stacking strategies are demonstrated viable, with a normal OCV of 5.6 V for a 4-cell stack and a stacking efficiency as high as 87.5%. Such kind of liquid-free Al-air batteries are especially suitable for powering portable electronic devices with small rated power.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jpowsour-
dc.relation.ispartofJournal of Power Sources-
dc.subjectPaper-based-
dc.subjectGel electrolyte-
dc.subjectLiquid-free-
dc.subjectAl-air battery-
dc.subjectFlexible battery-
dc.titleLiquid-free Al-air batteries with paper-based gel electrolyte: A green energy technology for portable electronics-
dc.typeArticle-
dc.identifier.emailWang, Y: wang1fei@connect.hku.hk-
dc.identifier.emailLeung, YCD: ycleung@hku.hk-
dc.identifier.authorityLeung, YCD=rp00149-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jpowsour.2019.226896-
dc.identifier.scopuseid_2-s2.0-85069562034-
dc.identifier.hkuros316329-
dc.identifier.volume437-
dc.identifier.spagearticle no. 226896-
dc.identifier.epagearticle no. 226896-
dc.identifier.isiWOS:000486355400002-
dc.publisher.placeNetherlands-
dc.identifier.issnl0378-7753-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats