A comprehensive study on the electrolyte, anode and cathode for developing commercial type non-flammable sodium-ion battery

Du, Kang; Wang, Chen; Subasinghe, Lihil Uthpala; Gajella, Satyanarayana Reddy; Law, Markas; Rudola, Ashish; Balaya, Palani

doi:10.1016/j.ensm.2020.04.021

Cited by 43 publications

(27 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, recent research suggests the first cycle CE and rate performance is not solely determined by the HC bulk structure but is also highly dependent on the choice of electrolyte [26] . For example, an HC anode with an ether-based electrolyte (1 M NaBF 4 in TEGDME) has shown a first cycle CE of 87% and a retention of 84% of its C/20 capacity at 2C [26] . Electrolyte is known to have a major role in the formation of the solid electrolyte interphase (SEI).…”

Section: Introductionmentioning

confidence: 99%

“…1 M NaPF 6 in PC was chosen as the conventional carbonate electrolyte because it is one of the most common electrolytes used in NIB research. 1 M NaBF 4 in TEGDME was chosen as the ether electrolyte because recent studies have shown it improves HC's electrochemical performances [26] . Electrochemical testing, TGC, and ex-situ Raman spectroscopy were applied to observe the (de)sodiation processes and the reversibility of sodium stored in the HC bulk structure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Role of electrolyte in stabilizing hard carbon as an anode for rechargeable sodium-ion batteries with long cycle life

Hirsh

Sayahpour

Shen

et al. 2021

Energy Storage Materials

View full text Add to dashboard Cite

Hard carbon (HC) is an attractive anode material for grid-level sodium-ion batteries (NIBs) due to the widespread availability of carbon, its high specific capacity, and low electrochemical working potential. However, the issues of low first cycle Coulombic efficiency and poor rate performance of HC need to be addressed for it to become a practical long-life solution for NIBs. These drawbacks appear to be electrolyte dependent, since ether-based electrolytes can largely improve the performance compared with carbonate electrolytes. An explanation for the mechanism behind these performance differences is critical for the rational design of highly reversible sodium storage. Combining gas chromatography, Raman spectroscopy, cryogenic transmission electron microscopy, and X-ray photoelectron spectroscopy, this work demonstrates that the solid electrolyte interphase (SEI) is the key difference between ether-and carbonated-based electrolyte, which determines the charge transfer kinetics and the extent of parasitic reactions. Although both electrolytes show no residual sodium stored in the HC bulk structure, the uniform and conformal SEI formed by the ether-based electrolyte enables improved cycle efficiency and rate performance. These findings highlight a pathway to achieve long-life grid-level NIBs using HC anodes through interfacial engineering.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Role of electrolyte in stabilizing hard carbon as an anode for rechargeable sodium-ion batteries with long cycle life

Hirsh

Sayahpour

Shen

et al. 2021

Energy Storage Materials

View full text Add to dashboard Cite

show abstract

“…The NaPF 6 with diglyme is stable in the range of 0–4.0 V versus Na and there is no oxidative/reductive decomposition (Westman et al, 2018). The Na 3 V 2 (PO 4 ) 3 cathode with nonflammable NaBF 4 tetraglyme is compared with the carbonate based electrolytes and shows excellent electrochemical stability in the 0–4.5V range (Du, Wang, et al, 2020). The reactivity of Na metal also causes decomposition of the electrolyte and affects the electrochemical cycling capability by inducing more side reactions (Pfeifer et al, 2019).…”

Section: Strategy and Future Perspectivementioning

confidence: 99%

A comprehensive review on recent advances of polyanionic cathode materials in Na‐ion batteries for cost effective energy storage applications

Sapra

Pati

Dwivedi

et al. 2021

WIREs Energy & Environment

View full text Add to dashboard Cite

Sustainable and efficient energy storage devices are crucial to meet the soaring global energy demand. In this context, Na‐ion batteries (NIBs) have emerged as one of the excellent alternatives to the Li‐ion batteries, due to the uniform geographical distribution, abundance, cost‐effectiveness, comparable operating voltage as well as similar intercalation chemistry. However, due to larger size of Na and other related issues, a subtle strategy of research is required for the development of electrode materials for NIBs to enhance overall electrochemical performance. Here, we provide a comprehensive review on recent advances of polyanionic cathode materials for NIBs for cost effective and large scale energy storage applications. Owing to their great thermal and chemical stability, high redox potential (inductive effect), and rich structural diversity, polyanionic cathodes have been considered potential candidates in recent years. We cover a large number of polyanionic materials and conclude with the strategies to improve the energy and power density of NIB. This article is categorized under: Energy Research & Innovation > Science and Materials Energy and Development > Science and Materials Energy and Transport > Science and Materials

show abstract

“…(2) In conducting the above studies, particular emphasis should be put on the effect of the electrolyte as it is known that there is an intimate relationship between the safety of a Li-ion cell and the electrolyte it contains [6,12]. Some recent results on large-scale Na-ion cells indicate that Na-ion electrolytes utilising high weight fractions of thermally stable solvents such as PC or Tetraglyme can indeed result in lower rates of heat generation or higher thresholds for onset of exothermic self-heating reactions [65][66][67][68] (3) Recently, some articles have analysed the economic potential of Na-ion batteries from a materials perspective [19][20][21]. Detailed life-cycle cost estimations for Na-ion batteries, focussing on not just material costs or resource availability, but other factors such as costs of shipping/storing Na-ion cells at 0 V, relative to Li-ion cells at 30% SOC, and also their recycling, would certainly be timely and illuminating for the alkali-ion battery community…”

Section: Summary and Future Studiesmentioning

confidence: 99%

Reviewing the Safe Shipping of Lithium-Ion and Sodium-Ion Cells: A Materials Chemistry Perspective

2021

Self Cite

View full text Add to dashboard Cite

High energy density lithium-ion (Li-ion) batteries are commonly used nowadays. Three decades’ worth of intense research has led to a good understanding on several aspects of such batteries. But, the issue of their safe storage and transportation is still not widely understood from a materials chemistry perspective. Current international regulations require Li-ion cells to be shipped at 30% SOC (State of Charge) or lower. In this article, the reasons behind this requirement for shipping Li-ion batteries are firstly reviewed and then compared with those of the analogous and recently commercialized sodium-ion (Na-ion) batteries. For such alkali-ion batteries, the safest state from their active materials viewpoint is at 0 V or zero energy, and this should be their ideal state for storage/shipping. However, a “fully discharged” Li-ion cell used most commonly, composed of graphite-based anode on copper current collector, is not actually at 0 V at its rated 0% SOC, contrary to what one might expect—the detailed mechanism behind the reason for this, namely, copper dissolution, and how it negatively affects cycling performance and cell safety, will be summarized herein. It will be shown that Na-ion cells, capable of using a lighter and cheaper aluminum current collector on the anode, can actually be safely discharged to 0 V (true 0% SOC) and beyond, even to reverse polarity (negative voltages). It is anticipated that this article spurs further research on the 0 V capability of Na-ion systems, with some suggestions for future studies provided.

show abstract

A comprehensive study on the electrolyte, anode and cathode for developing commercial type non-flammable sodium-ion battery

Cited by 43 publications

References 57 publications

Role of electrolyte in stabilizing hard carbon as an anode for rechargeable sodium-ion batteries with long cycle life

Role of electrolyte in stabilizing hard carbon as an anode for rechargeable sodium-ion batteries with long cycle life

A comprehensive review on recent advances of polyanionic cathode materials in Na‐ion batteries for cost effective energy storage applications

Reviewing the Safe Shipping of Lithium-Ion and Sodium-Ion Cells: A Materials Chemistry Perspective

Contact Info

Product

Resources

About