Phosphorus additives for improving high voltage stability and safety of lithium ion batteries

Aspern, Natascha von; Röser, Stephan; Rad, Babak Rezaei; Murmann, Patrick; Streipert, Benjamin; Mönnighoff, Xaver; Tillmann, Selina Denise; Shevchuk, Michael V.; Stubbmann-Kazakova, Olesya; Röschenthaler, Gerd‐Volker; Nowak, Sascha; Winter, Martin; Cekic‐Laskovic, Isidora

doi:10.1016/j.jfluchem.2017.02.005

Cited by 60 publications

(43 citation statements)

References 50 publications

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“…In case of REF, the amount of the decomposition products slightly increases during prolonged cycling, whereas the PFPOEPi‐1CF 3 containing electrolyte displays no additional decomposition products with increasing the number of charge/discharge cycles. The obtained XPS results point out the decomposition of phospholane molecules on the NMC111 electrode surface, as indicated by the presence of the CF 3 peak at 293 eV in the C 1s core spectra. Furthermore, a higher C−O content compared to the REF indicates phospholane decomposition as the phospholane molecules tend to polymerize on the NMC111 surface via ring opening reaction.…”

Section: Resultsmentioning

confidence: 99%

“…A peak at 293 eV in Figure b), assigned to the CF 3 group for the PFPOEPi‐1CF 3 containing cells after formation as well as after 161 charge/discharge cycles, clearly indicates a decomposition of PFPOEPi‐1CF 3 molecule on the graphite surface. As this peak is not observed in the spectra of the PFPOEPi containing cells, the obtained XPS data give no clear indication, whether PFPOEPi decomposes on the graphite surface or not.…”

Section: Resultsmentioning

confidence: 99%

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Non‐Flammable Fluorinated Phosphorus(III)‐Based Electrolytes for Advanced Lithium‐Ion Battery Performance

et al. 2020

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In the quest for ever higher energy and power densities of lithium‐based batteries, numerous functional materials are being utilized, however in many cases their highly reactive nature is likely to increase the risk of danger in case of battery failures. This especially affects the aprotic non‐aqueous organic carbonate‐based electrolyte, still considered as the state‐of‐the‐art (SOTA) and its volatile and highly flammable components. Efforts to identify different forms of flame‐retardants or nonflammable electrolyte solvents/co‐solvents to reduce the risk of fire or explosion are inevitably followed by a trade‐off between the improved safety and deteriorated overall cycling performance of a battery. Here, we report on a smartly tailored, multifunctional nonflammable electrolyte formulation comprising 15.0 wt.% 2‐(2,2,3,3,3‐pentafluoro‐propoxy)‐4‐(trifluormethyl)‐1,3,2‐dioxaphospholane (PFPOEPi‐1CF3), significantly advancing the cycling performance of the NMC111||graphite cells by formation of an effective interphase on/at both anode and cathode and correlate its performance to the 2‐(2,2,3,3,3‐pentafluoropropoxy)‐1,3,2‐dioxaphospholane (PFPOEPi) containing electrolyte counterpart by establishing a strong structure‐reactivity‐performance‐relationship.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Non‐Flammable Fluorinated Phosphorus(III)‐Based Electrolytes for Advanced Lithium‐Ion Battery Performance

et al. 2020

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“…Huang and co-workers [76] demonstrated that an electrolyte containing 1wt% trimethylsilyl (TMSB) is helpful to suppress the self-discharge of charged LiNi 0.5 Mn 1.5 O 4 cathodes.T his effect results from the preferential oxidation of TMSB and the subsequent formation of aprotective CEI film. Aspern et al [84] proposed three phosphorus-containing molecules,t ris(2,2,3,3,3-pentafluoropropyl) phosphate (5F-TPrP), tris (1,1,1,3 In general, electrolyte additives are found to improve the performance of Li 0 batteries with intercalation-type cathodes, thus opening an ew possibility to tackle the main challenges delaying their large-scale commercialization. and Figure 11.…”

Section: Additives For Other Purposesmentioning

confidence: 99%

Electrolyte Additives for Lithium Metal Anodes and Rechargeable Lithium Metal Batteries: Progress and Perspectives

et al. 2018

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Lithium metal (Li ) rechargeable batteries (LMBs), such as systems with a Li anode and intercalation and/or conversion type cathode, lithium-sulfur (Li-S), and lithium-oxygen (O )/air (Li-O /air) batteries, are becoming increasingly important for electrifying the modern transportation system, with the aim of sustainable mobility. Although some rechargeable LMBs (e.g. Li /LiFePO batteries from Bolloré Bluecar, Li-S batteries from OXIS Energy and Sion Power) are already commercially viable in niche applications, their large-scale deployment is hampered by a number of formidable challenges, including growth of lithium dendrites, electrolyte instability towards high voltage intercalation-type cathodes, the poor electronic and ionic conductivities of sulfur (S ) and O , as well as their corresponding reduction products (e.g. Li S and Li O), dissolution, and shuttling of polysulfide (PS) intermediates. This leads to a short lifecycle, low coulombic/energy efficiency, poor safety, and a high self-discharge rate. The use of electrolyte additives is considered one of the most economical and effective approaches for circumventing these problems. This Review gives an overview of the various functional additives that are being applied and aims to stimulate new avenues for the practical realization of these appealing devices.

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“…For the layered cathode, most of the improvements by using electrolyte additives are based on reactions with the surficial Li residual compounds (such as Li 2 CO 3 , LiOH, and Li 2 O) to reconstitute a more conductive or more favorable CEI . Therefore, effective additives for the layered cathode are mainly centered on the compounds that can react with the alkaline Li residual compounds, such as sulfates & sultones, phosphates & phosphites, and borates . As pointed out in Section 3.1, electrolyte solvents are subject to electrochemical reduction on the graphite anode under fast charge .…”

Section: Challenges and Strategiesmentioning

confidence: 99%

Challenges and Strategies for Fast Charge of Li‐Ion Batteries

Zhang

2020

ChemElectroChem

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Long charging time for Li‐ion batteries is a critical obstacle for the widespread adoption of electric vehicles, especially when compared with the rapid refueling of traditional internal combustion engine vehicles. Fast charging results in accelerated performance degradation and low energy efficiency for Li‐ion batteries. The batteries adopted in the present electric vehicle market are mainly based on chemistry consisting of a graphite anode and a layered lithium transition‐metal oxide cathode. The fast‐charging capability of such batteries is limited by Li plating on the graphite anode and structural instability of the layered lithium transition‐metal oxide cathode. In this Minireview, the challenges and possible solutions to these fast charge problems are reviewed at both the materials and cell levels.

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Phosphorus additives for improving high voltage stability and safety of lithium ion batteries

Cited by 60 publications

References 50 publications

Non‐Flammable Fluorinated Phosphorus(III)‐Based Electrolytes for Advanced Lithium‐Ion Battery Performance

Non‐Flammable Fluorinated Phosphorus(III)‐Based Electrolytes for Advanced Lithium‐Ion Battery Performance

Electrolyte Additives for Lithium Metal Anodes and Rechargeable Lithium Metal Batteries: Progress and Perspectives

Challenges and Strategies for Fast Charge of Li‐Ion Batteries

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