ORALS

SESSION: BatteryMonAM-R9	Yazami International Symposium (7th Intl. Symp. on Sustainable Secondary Battery Manufacturing & Recycling)
Mon. 28 Nov. 2022 / Room: Similan 2
Session Chairs: TBA Session Monitor: TBA

11:55: [BatteryMonAM02] OS Plenary
Beyond Li-Ion Batteries: Future Prospects for Li-S Batteries
Vasant Kumar¹ ; ¹University of Cambridge, Cambridge, United Kingdom;
Paper Id: 457 [Abstract]

Li-S batteries are likely to have a promising role to play in the next generation of energy storage technology. The interest arises from several favorable factors: high specific capacity of sulfur at 1670 mAh g-1; abundance in nature and from desulfurised waste dumps; low-cost; and non-toxicity. The practical applications are still hampered by several issues: extremely low conductivity of S and the final discharge product Li2S; shuttling of soluble intermediate polysulfides between electrodes; poor utilization of S; low coulombic efficiency; large volume change of S upon lithiation; and low cycle life from fast capacity fade. Strategies that promise to offer solutions to deal with the above technical barriers are presented.

SESSION: BatteryMonPM1-R9	Yazami International Symposium (7th Intl. Symp. on Sustainable Secondary Battery Manufacturing & Recycling)
Mon. 28 Nov. 2022 / Room: Similan 2
Session Chairs: Carsten Schwandt; Jim Zheng; Session Monitor: TBA

14:25: [BatteryMonPM106] OS
Battery Performance Analysis of Hollow Double-shelled Sphere VOOH as The Cathode for Aqueous Zinc-Ion Battery
Vasant Kumar¹ ; Sarah Alya Firnadya² ; ¹University of Cambridge, Cambridge, United Kingdom; ²University of Cambridge, New York, United States;
Paper Id: 470 [Abstract]

Aqueous Zn-ion battery has been getting much attention because of the ready availability and low cost of zinc relative to lithium [1]. The battery is also much safer to manufacture, use and dispose as they use water-based electrolyte and non-flammable electrode materials [2]. As a cathode, hollow shelled MOOH (M = V, Fe) has been considered as a good cathode as it produces high capacity, stability, and long-life [3]. In this study, the morphology of the VOOH material has been altered into hollow double shell sphere structure to achieve a stable cathode with high internal surface area[3][4]. The effects on capacity with respect to a single-shelled VOOH will be investigated and analyzed. The double shelled VOOH was prepared using a 2-step hydrothermal process [4] and was made into a slurry to be pasted onto a stainless steel SS304 current collector. The battery was then assembled using current collectors, a metallic anode, a separator soaked with electrolyte and the cathode in a Swagelock Cell for testing. The results showed that the capacity of the cathode was similar to the single-shelled VOOH with a capacity of 479, 426, 414, 374, and 284 mAh g-1, at current densities of 0.01, 0.1, 0.2, 0.5 and 1 A g-1, respectively. Effects of each battery component was also analyzed in this study by using different anodes (Zn and Cu), electrolytes (Zn(CF3SO3)2 (aq, 3M) and ZnSO4 (aq, 2M)), separators (glass fiber and polypropylene), and current collectors SS304, Al, and Cu. An oxidized version of VOOH was also tested as a cathode to analyze the difference between the two cathodes. Structural and morphological characterization methods used in this study were XRD and SEM, and the electrochemical methods deployed were battery performance Charge-discharge cycle tests, Cyclic Voltammetry, and Electrochemical Impedance Spectroscopy. The result showed that the optimal component for the battery were VOOH as the cathode, Zn as the anode, Zn(CF3SO3)2 3M as the electrolyte, glass fiber as the separator and SS 304 as the current collector.

References:
[1] J. F. Parker et al., “Rechargeable nickel–3D zinc batteries: An energy-dense, safer alternative to lithium-ion,” Science (80-. )., vol. 418, no. April, pp. 415–418, 2017.
[2] L. E. Blanc, D. Kundu, and L. F. Nazar, “Scientific Challenges for the Implementation of Zn-Ion Batteries,” Joule, vol. 4, no. 4, pp. 771–799, 2020, doi: 10.1016/j.joule.2020.03.002.
[3] L. Wang, K. W. Huang, J. Chen, and J. Zheng, “Ultralong cycle stability of aqueous zinc-ion batteries with zinc vanadium oxide cathodes,” Sci. Adv., vol. 5, no. 10, pp. 1–11, 2019, doi: 10.1126/sciadv.aax4279.
[4] C. Wu, X. Zhang, B. Ning, J. Yang, and Y. Xie, “Shape evolution of new-phased lepidocrocite vooh from single-shelled to double-shelled hollow nanospheres on the basis of programmed reaction-temperature strategy,” Inorg. Chem., vol. 48, no. 13, pp. 6044–6054, 2009, doi: 10.1021/ic900416v.

SESSION: BatteryMonPM2-R9	Yazami International Symposium (7th Intl. Symp. on Sustainable Secondary Battery Manufacturing & Recycling)
Mon. 28 Nov. 2022 / Room: Similan 2
Session Chairs: Thierry Djenizian; Session Monitor: TBA

15:55: [BatteryMonPM209] OS Plenary
Battery Chemistries
Vasant Kumar¹ ; ¹University of Cambridge, Cambridge, United Kingdom;
Paper Id: 479 [Abstract]

Lithium based batteries have come to represent paradigm shift in energy storage in electrification of transportation and in supporting power generation from renewable energy technologies. Looking into the near future, many other battery chemistries are staking their claims within a mix of battery chemistry portfolios. Given the massive shifts facing the future energy-environment paradigm, it is pertinent to evaluate the progress of various battery chemistries within this nexus in the evolving scenario. Several factors including future research trajectories with respect to low-carbon resources become matters of paramount interest. Understanding battery chemistry basics is critical to unlocking the issues of energy, power, costs, safety, resources, and sustainability, as this Tutorial will explore. In addition to Lithium chemistries, fundamentals of Sodium, Zinc, Aluminium, Potassium, Magnesium, Lead, Solid-State and Redox battery systems will be introduced.