Zn-Sn Interdigitated Eutectic Alloy Anodes with High Volumetric Capacity for Lithium-Ion Batteries

Heligman, Brian Theodore; Kreder, Karl J.; Manthiram, Arumugam

doi:10.1016/j.joule.2019.01.005

Cited by 59 publications

(51 citation statements)

References 25 publications

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“…1a and Supplementary Table 1 ) 10 , 21 , 24 , 25 . To tackle its inherent irreversibility issue due to the oxide layer, here we design periodically aligned metallic/intermetallic Al/Al 2 Cu galvanic couples in E-Al 82 Cu 18 alloy to improve the Al stripping/plating in AR-AMBs, distinguishing from eutectic Zn-Sn alloy to minimize active materials pulverization and subsequent loss of electrical contact in LIBs 38 , and eutectic Zn-Al alloy to address dendrite issue of Zn metal anode in aqueous rechargeable zinc-ion batteries 39 . With the assumption that all Al atoms can take part in the electrochemical stripping/plating, the theoretical volumetric and gravimetric capacities of the E-Al 82 Cu 18 alloy are estimated to reach 7498 mAh cm −3 and 1965 mAh g −1 .…”

Section: Resultsmentioning

confidence: 99%

Aluminum-copper alloy anode materials for high-energy aqueous aluminum batteries

et al. 2022

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Aqueous aluminum batteries are promising post-lithium battery technologies for large-scale energy storage applications because of the raw materials abundance, low costs, safety and high theoretical capacity. However, their development is hindered by the unsatisfactory electrochemical behaviour of the Al metal electrode due to the presence of an oxide layer and hydrogen side reaction. To circumvent these issues, we report aluminum-copper alloy lamellar heterostructures as anode active materials. These alloys improve the Al-ion electrochemical reversibility (e.g., achieving dendrite-free Al deposition during stripping/plating cycles) by using periodic galvanic couplings of alternating anodic α-aluminum and cathodic intermetallic Al2Cu nanometric lamellas. In symmetric cell configuration with a low oxygen concentration (i.e., 0.13 mg L−1) aqueous electrolyte solution, the lamella-nanostructured eutectic Al82Cu18 alloy electrode allows Al stripping/plating for 2000 h with an overpotential lower than ±53 mV. When the Al82Cu18 anode is tested in combination with an AlxMnO2 cathode material, the aqueous full cell delivers specific energy of ~670 Wh kg−1 at 100 mA g−1 and an initial discharge capacity of ~400 mAh g−1 at 500 mA g−1 with a capacity retention of 83% after 400 cycles.

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Section: Resultsmentioning

confidence: 99%

Aluminum-copper alloy anode materials for high-energy aqueous aluminum batteries

et al. 2022

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“…Even aside from a foil design (i.e., ≥0.1 mm), the metallurgical opportunities afforded by Al open up pathways for high performance 3D architectures, as already indicated by novel IdEA platforms explored by others. 31 From the end-of-life perspective, a piece of metallic foil might offer alternative options for recyclers and waste processors who are concerned about the challenges of today's standard composite electrode designs and the mix of materials therein. 32…”

Section: Discussionmentioning

confidence: 99%

Aluminum Foil Anodes for Li-ion Rechargeable Batteries: The Role of Li Solubility within β-LiAl

Zheng

Kramer

Mönig

et al. 2021

Preprint

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Li-ion battery (LIB) electrodes contain a substantial amount of electrochemically inactive materials, including binder, conductive agent, and current collectors. These extra components significantly dilute the specific capacity of whole electrodes, and thus have led to efforts to utilize foils, e.g., Al, as the sole anode material. Interestingly, the literature has many reports of fast degradation of Al electrodes, where less than a dozen cycles can be achieved. However, in some studies, Al anodes demonstrate stable cycling life with several hundred cycles. In this work, we present a successful pathway for enabling long-term cycling of simple Al foil anodes: β-LiAl phase grown from Al foil (α-Al) exhibits a cycling life of 500 cycles with a ~96% capacity retention when paired with a commercial cathode. The excellent performance stems from strategic utilization of the Li solubility range of β-LiAl that can be (de-)lithiated without altering its crystal structure. This solubility range at room temperature is determined to be ~6 at%. Consequently, this design circumvents the critical issues associated with the α/β/α phase transformations, such as volume change, mechanical strain, and nanopore formation. Application-wise, the maturity of aluminum industry, combined with excellent sustainability prospects, makes this anode an important option for future devices.

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“…Because Cu is very dense (8.9 g cm À3 versus 0.534 g cm À3 for Li), it contributes nearly 75% of the mass of such an anode, dramatically reducing its effec-tive capacity. 9 Cu also gets corroded by LiPSs. These issues hinder the use of thin Li foils in this format and hamper the reduction of N/P below 5.…”

Section: Anode Architecturementioning

confidence: 99%

Lithium-Sulfur Batteries: Attaining the Critical Metrics

Bhargav

Gupta

et al. 2020

Joule

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576

416

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Zn-Sn Interdigitated Eutectic Alloy Anodes with High Volumetric Capacity for Lithium-Ion Batteries

Abstract: In this work, nanostructured foils are generated by cold-rolling two-phase metal alloys. This unique electrode architecture exemplifies a highly practical approach for the development of next-generation high-energy-density batteries.

Cited by 59 publications

References 25 publications

Aluminum-copper alloy anode materials for high-energy aqueous aluminum batteries

Aluminum-copper alloy anode materials for high-energy aqueous aluminum batteries

Aluminum Foil Anodes for Li-ion Rechargeable Batteries: The Role of Li Solubility within β-LiAl

Lithium-Sulfur Batteries: Attaining the Critical Metrics

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