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Zinc-ion battery

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A zinc-ion battery or Zn-ion battery (abbreviated as ZIB) uses zinc ions (Zn2+) as the charge carriers.[1] Specifically, ZIBs utilize Zn metal as the anode, Zn-intercalating materials as the cathode, and a Zn-containing electrolyte. Generally, the term zinc-ion battery is reserved for rechargeable (secondary) batteries, which are sometimes also referred to as rechargeable zinc metal batteries (RZMB).[2] Thus, ZIBs are different than non-rechargeable (primary) batteries which use zinc, such as alkaline or zinc–carbon batteries.

History

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In 2011, Feiyu Kang's group showcased for the first time the reversible Zn-ion insertion into the tunnel structure of alpha-type manganese dioxide (MnO2) host used as the cathode in a ZIB.[3][4]

The University of Waterloo in Canada owns patent rights to zinc-ion battery technology developed in its laboratories.[5][6] The Canadian company Salient Energy is commercialising the zinc-ion battery technology.[7]

Other forms of rechargeable zinc batteries are also being developed for stationary energy storage, although these are not explicitly zinc-ion. For example, Eos Energy Storage is developing a zinc-halide battery in which the cathode reaction involves the oxidation and reduction of halides.[8] Eos Energy Storage is producing 1.5GWh of ‘Made in America’ zinc batteries to be used in the Texas and California electric grids.[9][10]

Research

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Motivation

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ZIBs are an alternative to lithium-ion batteries for grid-scale energy storage because of their affordability, safety, and compatibility with aqueous electrolytes. Research challenges at the anode, electrolyte, and cathode currently prevent its further commercialization.[11]

Anodes

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A zinc metal negative electrode holds a high theoretical volumetric capacity (5854 Ah L-1), gravimetric capacity (820 Ah kg-1), and natural abundance.[2] Zinc production and proven reserves exist at a higher scale than lithium metal due to zinc’s use in galvanization and its broad geographic availability.[12] Other benefits of zinc metal as an anode material include its compatibility with both aqueous and non-aqueous electrolytes and its higher safety and lower environmental toxicity compared to lithium.[13]

Challenges to the Zn metal anode in the typical near-neutral aqueous electrolyte include the hydrogen evolution reaction and anode corrosion, which can cause capacity loss. Dendrite growth also occurs on Zn metal, like on Li metal, due to uneven plating.[14] While these dendrites can cause capacity loss and cell short-circuit, they do not cause the explosion and fire risk of lithium metal batteries due to the aqueous electrolytes. Current research strategies to address these challenges include anode capping layers and structural and chemical changes to the Zn metal.[14]

Electrolytes

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Aqueous electrolytes are the dominant form in ZIBs due to their high conductivity, low price, non-flammability, and environmental safety. Typical Zn salts are ZnSO4, Zn(OTf)2, and Zn(TFSI)2.[13] Zinc sulfate is widely used today because of its lower cost and electrode stability, but the larger triflate and TFSI anions can lead to higher conductivities. Despite the advantages of aqueous electrolytes, the hydrogen evolution reaction and facile dendrite growth limit their use. Electrolyte additives such as buffering agents or other zinc salts can improve the performance of the aqueous electrolyte, as can the use of superconcentrated electrolytes, by altering the zinc solvation structure.[15]

Non-aqueous electrolytes are another area of current research that uses organic liquid or ionic liquid electrolytes to prevent the hydrogen evolution reaction. Despite the lower conductivities and higher costs of these electrolytes, they can have higher voltage stability windows than water (1.7V) as well as higher coulombic efficiencies and cycle lifetimes due to an absence of the hydrogen evolution reaction. Current research includes methods to increase the conductivity and lower the charge transfer resistance of these electrolytes.[16]

Cathodes

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Manganese and Vanadium oxides are the most popular cathode materials for ZIBs due to their stability and theoretical capacity.[13] MnO2 cathodes come in multiple phases with different intercalation geometries and specific capacities, the most studied of which are the alpha-, gamma-, and delta-types. In addition to these two materials, Prussian blue analogues, spinel-structured oxides, hexacyanoferrates, and organic materials are also being explored as cathode materials.[17][18] Additional research is needed to confirm the exact reaction mechanisms and electrolyte-cathode relationship in ZIBs.

See also

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References

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  1. ^ "A cheap, long-lasting, sustainable battery for grid energy storage | KurzweilAI". www.kurzweilai.net. 2016-09-16. Retrieved 2017-02-02.
  2. ^ a b Ma, Lin; Schroeder, Marshall A.; Borodin, Oleg; Pollard, Travis P.; Ding, Michael S.; Wang, Chunsheng; Xu, Kang (2020). "Realizing high zinc reversibility in rechargeable batteries". Nature Energy. 5 (10): 743–749. Bibcode:2020NatEn...5..743M. doi:10.1038/s41560-020-0674-x. ISSN 2058-7546. S2CID 221118342.
  3. ^ US 20120034515, Kang, Feiyu; XU, Chengjun & Li, Baohua, "Rechargeable zinc ion battery", published Feb 9, 2012 
  4. ^ Xu, Chengjun; Li, Baohua; Du, Hongda; Kang, Feiyu (2012-01-23). "Energetic Zinc Ion Chemistry: The Rechargeable Zinc Ion Battery". Angewandte Chemie International Edition. 51 (4): 933–935. doi:10.1002/anie.201106307. ISSN 1521-3773. PMID 22170816.
  5. ^ Kundu, Dipan; Vajargah, Shahrzad Hosseini; Wan, Liwen; Adams, Brian; Prendergast, David; Nazar, Linda F. (April 18, 2018). "Aqueous vs. nonaqueous Zn-ion batteries: consequences of the desolvation penalty at the interface". Energy & Environmental Science. 11 (4): 881–892. doi:10.1039/C8EE00378E. OSTI 1469689 – via pubs.rsc.org.
  6. ^ "University of Waterloo Salient Energy". CBC.
  7. ^ "Power up: Halifax's thriving battery scene attracts Ontario startup". Dalhousie News.
  8. ^ "Stakeholder Consultation of the Energy Storage Partnership (ESP) November 18, 2020 | ESMAP". esmap.org. Retrieved 2022-03-20.
  9. ^ "Home". Eos Energy Enterprises.
  10. ^ "1.5GWh of 'Made in America' zinc batteries joining Texas, California grids from Eos Energy Storage". Energy Storage News. 1 Sep 2020.
  11. ^ Sagoff, Jared (November 29, 2022). "Looking at Challenges to Zinc-Ion Batteries".
  12. ^ Innocenti, Alessandro; Bresser, Dominic; Garche, Jürgen; Passerini, Stefano (2024-05-14). "A critical discussion of the current availability of lithium and zinc for use in batteries". Nature Communications. 15 (1): 4068. Bibcode:2024NatCo..15.4068I. doi:10.1038/s41467-024-48368-0. ISSN 2041-1723. PMID 38744859.
  13. ^ a b c Ming, Jun; Guo, Jing; Xia, Chuan; Wang, Wenxi; Alshareef, Husam N. (2019-01-01). "Zinc-ion batteries: Materials, mechanisms, and applications". Materials Science and Engineering: R: Reports. 135: 58–84. doi:10.1016/j.mser.2018.10.002. ISSN 0927-796X.
  14. ^ a b Lu, Wenjing; Zhang, Changkun; Zhang, Huamin; Li, Xianfeng (2021-08-13). "Anode for Zinc-Based Batteries: Challenges, Strategies, and Prospects". ACS Energy Letters. 6 (8): 2765–2785. doi:10.1021/acsenergylett.1c00939. ISSN 2380-8195.
  15. ^ Borchers, Niklas; Clark, Simon; Horstmann, Birger; Jayasayee, Kaushik; Juel, Mari; Stevens, Philippe (2021-02-01). "Innovative zinc-based batteries". Journal of Power Sources. 484: 229309. Bibcode:2021JPS...48429309B. doi:10.1016/j.jpowsour.2020.229309. ISSN 0378-7753.
  16. ^ Han, Sang-Don; Rajput, Nav Nidhi; Qu, Xiaohui; Pan, Baofei; He, Meinan; Ferrandon, Magali S.; Liao, Chen; Persson, Kristin A.; Burrell, Anthony K. (2016-02-10). "Origin of Electrochemical, Structural, and Transport Properties in Nonaqueous Zinc Electrolytes". ACS Applied Materials & Interfaces. 8 (5): 3021–3031. doi:10.1021/acsami.5b10024. ISSN 1944-8244. PMID 26765789.
  17. ^ Alfaruqi, Muhammad H.; Mathew, Vinod; Gim, Jihyeon; Kim, Sungjin; Song, Jinju; Baboo, Joseph P.; Choi, Sun H.; Kim, Jaekook (2015-05-26). "Electrochemically Induced Structural Transformation in a γ-MnO 2 Cathode of a High Capacity Zinc-Ion Battery System". Chemistry of Materials. 27 (10): 3609–3620. doi:10.1021/cm504717p. ISSN 0897-4756.
  18. ^ Trócoli, Rafael; La Mantia, Fabio (February 2015). "An Aqueous Zinc-Ion Battery Based on Copper Hexacyanoferrate". ChemSusChem. 8 (3): 481–485. Bibcode:2015ChSCh...8..481T. doi:10.1002/cssc.201403143. ISSN 1864-5631. PMID 25510850.
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