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Article: High-Capacity Rechargeable Li/Cl2 Batteries with Graphite Positive Electrodes

TitleHigh-Capacity Rechargeable Li/Cl2 Batteries with Graphite Positive Electrodes
Authors
Issue Date2022
Citation
Journal of the American Chemical Society, 2022, v. 144, n. 49, p. 22505-22513 How to Cite?
AbstractDeveloping new types of high-capacity and high-energy density rechargeable batteries is important to future generations of consumer electronics, electric vehicles, and mass energy storage applications. Recently, we reported ∼3.5 V sodium/chlorine (Na/Cl2) and lithium/chlorine (Li/Cl2) batteries with up to 1200 mAh g-1reversible capacity, using either a Na or a Li metal as the negative electrode, an amorphous carbon nanosphere (aCNS) as the positive electrode, and aluminum chloride (AlCl3) dissolved in thionyl chloride (SOCl2) with fluoride-based additives as the electrolyte [Zhu et al., Nature, 2021, 596 (7873), 525-530]. The high surface area and large pore volume of aCNS in the positive electrode facilitated NaCl or LiCl deposition and trapping of Cl2for reversible NaCl/Cl2or LiCl/Cl2redox reactions and battery discharge/charge cycling. Here, we report an initially low surface area/porosity graphite (DGr) material as the positive electrode in a Li/Cl2battery, attaining high battery performance after activation in carbon dioxide (CO2) at 1000 °C (DGr_ac) with the first discharge capacity ∼1910 mAh g-1and a cycling capacity up to 1200 mAh g-1. Ex situ Raman spectroscopy and X-ray diffraction (XRD) revealed the evolution of graphite over battery cycling, including intercalation/deintercalation and exfoliation that generated sufficient pores for hosting LiCl/Cl2redox. This work opens up widely available, low-cost graphitic materials for high-capacity alkali metal/Cl2batteries. Lastly, we employed mass spectrometry to probe the Cl2trapped in the graphitic positive electrode, shedding light into the Li/Cl2battery operation.
Persistent Identifierhttp://hdl.handle.net/10722/325586
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhu, Guanzhou-
dc.contributor.authorLiang, Peng-
dc.contributor.authorHuang, Cheng Liang-
dc.contributor.authorHuang, Cheng Chia-
dc.contributor.authorLi, Yuan Yao-
dc.contributor.authorWu, Shu Chi-
dc.contributor.authorLi, Jiachen-
dc.contributor.authorWang, Feifei-
dc.contributor.authorTian, Xin-
dc.contributor.authorHuang, Wei Hsiang-
dc.contributor.authorJiang, Shi Kai-
dc.contributor.authorHung, Wei Hsuan-
dc.contributor.authorChen, Hui-
dc.contributor.authorLin, Meng Chang-
dc.contributor.authorHwang, Bing Joe-
dc.contributor.authorDai, Hongjie-
dc.date.accessioned2023-02-27T07:34:34Z-
dc.date.available2023-02-27T07:34:34Z-
dc.date.issued2022-
dc.identifier.citationJournal of the American Chemical Society, 2022, v. 144, n. 49, p. 22505-22513-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/325586-
dc.description.abstractDeveloping new types of high-capacity and high-energy density rechargeable batteries is important to future generations of consumer electronics, electric vehicles, and mass energy storage applications. Recently, we reported ∼3.5 V sodium/chlorine (Na/Cl2) and lithium/chlorine (Li/Cl2) batteries with up to 1200 mAh g-1reversible capacity, using either a Na or a Li metal as the negative electrode, an amorphous carbon nanosphere (aCNS) as the positive electrode, and aluminum chloride (AlCl3) dissolved in thionyl chloride (SOCl2) with fluoride-based additives as the electrolyte [Zhu et al., Nature, 2021, 596 (7873), 525-530]. The high surface area and large pore volume of aCNS in the positive electrode facilitated NaCl or LiCl deposition and trapping of Cl2for reversible NaCl/Cl2or LiCl/Cl2redox reactions and battery discharge/charge cycling. Here, we report an initially low surface area/porosity graphite (DGr) material as the positive electrode in a Li/Cl2battery, attaining high battery performance after activation in carbon dioxide (CO2) at 1000 °C (DGr_ac) with the first discharge capacity ∼1910 mAh g-1and a cycling capacity up to 1200 mAh g-1. Ex situ Raman spectroscopy and X-ray diffraction (XRD) revealed the evolution of graphite over battery cycling, including intercalation/deintercalation and exfoliation that generated sufficient pores for hosting LiCl/Cl2redox. This work opens up widely available, low-cost graphitic materials for high-capacity alkali metal/Cl2batteries. Lastly, we employed mass spectrometry to probe the Cl2trapped in the graphitic positive electrode, shedding light into the Li/Cl2battery operation.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleHigh-Capacity Rechargeable Li/Cl2 Batteries with Graphite Positive Electrodes-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jacs.2c07826-
dc.identifier.pmid36450002-
dc.identifier.scopuseid_2-s2.0-85143391928-
dc.identifier.volume144-
dc.identifier.issue49-
dc.identifier.spage22505-
dc.identifier.epage22513-
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000891807400001-

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