Bridging 1D Inorganic and Organic Synthesis to Fabricate Ultrathin Bismuth‐Based Nanotubes with Controllable Size as Anode Materials for Secondary Li Batteries. Issue 39 (21st August 2022)

• Record Type: Journal Article
• Authors: Zong, Kai; Chu, Tianzhi; Liu, Dongqing; Mehmood, Andleeb; Fan, Tianju; Raza, Waseem; Hussain, Arshad; Deng, Yonggui; Liu, Wei; Saad, Ali; Zhao, Jie; Li, Ying; Aurbach, Doron; Cai, Xingke
• Is Part Of: Small. Volume 18:Issue 39(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-08-21
• Subjects: anode materials -- Bi 2O 2CO 3 nanotubes -- Li‐ion batteries -- low‐temperature performance; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.202204236
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract: The growth of ultrathin 1D inorganic nanomaterials with controlled diameters remains challenging by current synthetic approaches. A polymer chain templated method is developed to synthesize ultrathin Bi2 O2 CO3 nanotubes. This formation of nanotubes is a consequence of registry between the electrostatic absorption of functional groups on polymer template and the growth habit of Bi2 O2 CO3 . The bulk bismuth precursor is broken into nanoparticles and anchored onto the polymer chain periodically. These nanoparticles react with the functional groups and gradually evolve into Bi2 O2 CO3 nanotubes along the chain. 5.0 and 3.0 nm tubes with narrow diameter deviation are synthesized by using branched polyethyleneimine and polyvinylpyrrolidone as the templates, respectively. Such Bi2 O2 CO3 nanotubes show a decent lithium‐ion storage capacity of around 600 mA h g −1 at 0.1 A g −1 after 500 cycles, higher than other reported bismuth oxide anode materials. More interestingly, the Bi materials developed herein still show decent capacity at very low temperatures, that is, around 330 mA h g −1 (−22 °C) and 170 mA h g −1 (−35 °C) after 75 cycles at 0.1 A g −1, demonstrating their promising potential for practical application in extreme conditions. Abstract : The bismuth subcarbonate nanotubes/holey reduced graphene oxide anode shows excellent low‐temperature performance, which provides 36.1% capacity retention at −35 °C, 5.4 times higher than the commercial graphite anode, promising its potential for extreme environment application.