Multifunctional electrolyte additive for improved interfacial stability in Ni-rich layered oxide full-cells

Pham, Hieu Quang; Mirolo, Marta; Tarik, Mohamed; Kazzi, Mario El; Trabesinger, Sigita

doi:10.1016/j.ensm.2020.08.026

Cited by 80 publications

(44 citation statements)

References 57 publications

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“…As has been shown in our previous work, [38] the well passivated interface towards electrolyte has consequences for integrity of secondary NCM851005 particles. SEM micrographs in Figure 3 show the cross-sectional and top-view images of NCM851005 cathode before and after cycling in the full-cells without and with AEDB.…”

Section: Additive Effect On the Stabilization Of Ncm851005 Cathodesupporting

confidence: 69%

“…DFT calculations of the highest unoccupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) were performed with the Gaussian 09 software package (3df,2p). [38,66] Linear sweep voltammetry (LSV) was used to evaluate the anodic stability of electrolytes at a scan rate of 1 mV s À 1 from open-circuit voltage (OCV) of about 3.0 to 7.0 V vs. Li + /Li, with glassy carbon (Ø = 14 mm) as a working electrode, and lithium metal as a counter/reference electrode, using an electrochemical workstation (VMP3, BioLogic Science Instruments). The cyclic voltammetry (CV) measurements were carried out using an electrochemical workstation (VMP3, BioLogic Science Instruments) at a scanning rate of 0.05 mV s À 1 , and the voltage ranges for the LijjNCM851005 and the Lijjgraphite half-cells were 3.0À 4.4 V and 0.05À 3.0 V vs. Li + /Li, respectively.…”

Section: Experimental Section Additive Characterizationmentioning

confidence: 99%

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Cross‐Talk‐Suppressing Electrolyte Additive Enabling High Voltage Performance of Ni‐Rich Layered Oxides in Li‐Ion Batteries

et al. 2021

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Control of electrode-electrolyte interfacial reactivity at highvoltage is a key to successfully obtain high-energy-density lithium-ion batteries. In this study, 2-aminoethyldiphenyl borate (AEDB) is investigated as a multifunctional electrolyte additive in stabilizing surface and bulk of both Ni-rich Li-Ni 0.85 Co 0.1 Mn 0.05 O 2 (NCM851005) and graphite electrodes in a cell operated with elevated upper cutoff voltage of 4.4 V vs. Li + /Li. The presence of AEDB in a full-cell inhibits structural degradation of both cathode and anode materials, suppressing crack formation, and reduces metal dissolution at the cathode and metal deposition at the anode. As a consequence, the interfacial resistance is significantly reduced. Moreover, this is a case where "the whole is greater than the sum of the parts": the effect of AEDB in half-cells is rather modest, whereas in full-cells its addition results in tremendous performance improvement. The graphitejjNCM851005 full-cell in the presence of AEDB has a capacity retention of 88 % after 100 cycles, even when the upper cutoff voltage is set to 4.35 V, corresponding to 4.4 V vs Li + /Li, whereas with standard electrolyte under the same conditions it is only 21 %. The study shows a simple and easy approach to using Ni-rich cathodes in an extended voltage window and demonstrates the importance of full-cell testing for electrolyte additive selection.

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Section: Additive Effect On the Stabilization Of Ncm851005 Cathodesupporting

confidence: 69%

Section: Experimental Section Additive Characterizationmentioning

confidence: 99%

Cross‐Talk‐Suppressing Electrolyte Additive Enabling High Voltage Performance of Ni‐Rich Layered Oxides in Li‐Ion Batteries

et al. 2021

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“…[42,43] It is consistent with the absorption peak of PTCD at 1050 cm −1 . [44,45] The results prove the successful synthesis of PTCD.…”

Section: Preparation and Characterization Of Pdol And Ptcdmentioning

confidence: 58%

A Multifunctional Silicon‐Doped Polyether Network for Double Stable Interfaces in Quasi‐Solid‐State Lithium Metal Batteries

Zhang

Liu

et al. 2022

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are difficult to be simultaneously compatible with Li metal anode with a strong reducibility and metal-oxide cathode with high oxidizability. [9][10][11] The most effective strategy to solve the above-mentioned problems is the formation of stable solidelectrolyte-interface (SEI) layer between electrolyte and anode/cathode. [12][13][14] Therefore, the development of polymer-based QSE that can form the stable SEI layers on anode and cathode have great potential to improve the cyclic stability and safety of Li-metal batteries. [15][16][17] Great efforts have been done on the structure in regulation of polymer-based electrolyte to construct the stable SEI layer on anode, such as co-polymerization, [18,19] cross-linking, [20,21] blending, [8,22] plasticizing, [23] and adding inorganic materials. [24] For example, Wu et al. reported a quasi-solid-state polymer-brush electrolytes with robust strength and single lithium-ion conduction to realize the dendrite-free Li-metal batteries. [25] Compared with general polymer-based electrolyte, [26,27] the above strategies can effectively improve the mechanical strength to inhibit the growth of lithium dendrite for the increased stability of anode. [28][29][30] At cathode/electrolyte interface, the introduction of artificially inorganic/polymeric layers is a general and effective strategy to improve the stability. [17,31] For example, Choudhury et al. reported lithium's semi-crystalline anionic polymer electrolyte to coat the cathode to improve cyclic stability of high-voltage oxide materials. [2] Although the aforementioned strategies show their advantages for improving the cyclic stability of anode/ cathode, they still cannot concurrently meet the high requirements of stable interfaces for both high oxidation cathode and reduction anode. [33,34] Additionally, the mobility of present gel polymer electrolyte (GPE) has improved as the temperature increases, which limits the safety performance of batteries. [35,36] Therefore, the development of new strategy that simultaneously meets the requirements of QSE with high safety, the formation of SEI layers with resistance to high oxidation and reduction potentials, and is the key to the construction of highperformance lithium-metal batteries. [37][38][39] In this study, we first demonstrate that a silicon-doped polyether (Silicon, ≈10 wt%) can act as a multifunctional unit Polymer-based quasi-solid-state electrolyte (QSE) is an effective means to solve the safety problem of lithium (Li) metal batteries, and stable solidelectrolyte-interface (SEI) layers between electrolyte and anode/cathode are highly required for their long-term stability. Herein, it is demonstrated that a silicon-doped polyether functions as a multifunctional unit, which can induce the formation of stable and robust SEI layers with rich Li x SiO y on both the surfaces of cathode and anode. It simultaneously solves the compatibility of electrolyte and electrodes in the quasi-solid-state Li-metal battery. Moreover, the robust polymer skeleton with a cross-linked network...

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“…One typical example of a novel multifunctional additive applied in LiNi 0.85 Co 0.1 Mn 0.05 O 2 (NCM851005)/graphite full cells is methoxytri ethyleneoxypropy ltrimethoxysilane (MTE‐TMS), which belongs to the group of silane derivatives (Si–O) ( Figure 29 a). [ 198 ] The reported cyclic voltammetry (CV) shows that a standard electrolyte with 1 wt% MTE‐TMS reveals a couple of redox peaks at 3.75 and 1.5 V (vs Li/Li + ) with a smaller potential interval (Δ V ) compared with its additive‐free counterpart. Further characterizations demonstrate that the MTE‐TMS also stabilizes the formation of the CEI and SEI films at the electrodes and that the crack generation and TM dissolution is significantly reduced.…”

Section: Improvement Strategiesmentioning

confidence: 99%

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Jiang

Danilov

Eichel

et al. 2021

Advanced Energy Materials

347

180

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The growing demand for sustainable energy storage devices requires rechargeable lithium‐ion batteries (LIBs) with higher specific capacity and stricter safety standards. Ni‐rich layered transition metal oxides outperform other cathode materials and have attracted much attention in both academia and industry. Lithium‐ion batteries composed of Ni‐rich layered cathodes and graphite anodes (or Li‐metal anodes) are suitable to meet the energy requirements of the next generation of rechargeable batteries. However, the instability of Ni‐rich cathodes poses serious challenges to large‐scale commercialization. This paper reviews various degradation processes occurring at the cathode, anode, and electrolyte in Ni‐rich cathode‐based LIBs. It highlights the recent achievements in developing new stabilization strategies for the various battery components in future Ni‐rich cathode‐based LIBs.

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Multifunctional electrolyte additive for improved interfacial stability in Ni-rich layered oxide full-cells

Cited by 80 publications

References 57 publications

Cross‐Talk‐Suppressing Electrolyte Additive Enabling High Voltage Performance of Ni‐Rich Layered Oxides in Li‐Ion Batteries

Cross‐Talk‐Suppressing Electrolyte Additive Enabling High Voltage Performance of Ni‐Rich Layered Oxides in Li‐Ion Batteries

A Multifunctional Silicon‐Doped Polyether Network for Double Stable Interfaces in Quasi‐Solid‐State Lithium Metal Batteries

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

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