Synthesis and properties of nanostructured LiNi1/3Co1/3Mn1/3O2 as cathode with lithium bis(oxalate)borate-based electrolyte to improve cycle performance in Li-ion battery

Li, Chunlei; Hou, Qian; Li, Shiyou; Tang, Fengjuan; Wang, Peng

doi:10.1016/j.jallcom.2017.06.151

Cited by 14 publications

(7 citation statements)

References 47 publications

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“…Boron‐containing additives have been extensively used to improve the stability of LiNi 0.5 Mn 1.5 O 4 cathodes, suppressing the decomposition of electrolyte by forming a compact cathode–electrolyte interphase (CEI) layer on the cathode surface . Among many B‐containing additives, lithium bis(oxalato)borate (LiBOB) is attractive because its highest occupied molecular orbital (HOMO) energy is higher and its lowest unoccupied molecular orbital (LUMO) energy is lower than those of lithium hexafluorophosphate (LiPF 6 ), leading to its preferential decomposition to form protective layers on both the cathode and Li metal anode, compared with the conventional electrolyte of LiPF 6 in ethylene carbonate (EC) and ethyl methyl carbonate (EMC) . Some researchers reported that LiBOB can be electrochemical reduced at about 1.7 V versus Li/Li + and oxidized at about 4.2 V versus Li/Li + in linear sweep voltammetry measurements and that it generates borate‐containing SEI/CEI owing to the decomposition of BOB − anions .…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Stabilization of LiNi_0.76Mn_0.14Co_0.10O₂ Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

et al. 2018

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The long-term cycling performance, rate capability, and voltage stability of lithium (Li) metal batteries with LiNi Mn Co O (NMC76) cathodes is greatly enhanced by lithium bis(oxalato)borate (LiBOB) additive in the LiPF -based electrolyte. With 2 % LiBOB in the electrolyte, a Li∥NMC76 cell is able to achieve a high capacity retention of 96.8 % after 200 cycles at C/3 rate (1 C=200 mA g ), which is the best result reported for a Ni-rich NMC cathode coupled with Li metal anode. The significantly enhanced electrochemical performance can be ascribed to the stabilization of both the NMC76 cathode/electrolyte and Li-metal-anode/electrolyte interfaces. The LiBOB-containing electrolyte not only facilitates the formation of a more compact solid-electrolyte interphase on the Li metal surface, it also forms a enhanced cathode electrolyte interface layer, which efficiently prevents the corrosion of the cathode interface and mitigates the formation of the disordered rock-salt phase after cycling. The fundamental findings of this work highlight the importance of recognizing the dual effects of electrolyte additives in simultaneously stabilizing both cathode and anode interfaces, so as to enhance the long-term cycle life of high-energy-density battery systems.

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Section: Introductionmentioning

confidence: 99%

Simultaneous Stabilization of LiNi_0.76Mn_0.14Co_0.10O₂ Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

et al. 2018

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“…RIR > 1.2 is important for layered cathode material with a well-ordered structure with limited Li/Ni mixing [2]. T80 material gives the positive sign of good cation ordering and crystallinity when demonstrated with the highest I(003)/I(104) ratio [30]. It also causes a clear split between (006) and (102) peaks and good symmetry of the (108) and ( 110) peaks (in the circle zone of Figure 2(d)), which indicates this material has a well-defined layered structure.…”

Section: Phase and Structural Studiesmentioning

confidence: 99%

Annealing effect on structural and electrochemical performance of Ti-doped LiNi1/3Mn1/3Co1/3O2 cathode materials

Elong

Kasim

Badar

et al. 2023

J. Electrochem. Sci. Eng.

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NMC 111 cathode materials exhibit engaging properties in high energy density and low cost, making it great potential for the next generation of high-energy lithium-ion batteries. However, it still faces challenges such as fast capacity fade, especially at high C rates. Herein, we implement the novel Ti-doped cathode material, LiNi0.3Mn0.3Co0.3Ti0.1O2 (NMCT) synthesized via the combustion method. It was discovered that NMCT can effectively improve capacity delivery at high C rates. The T80 material demonstrated superior electrochemical annealed at 800 ˚C for 72 h, with an exceptional specific discharge capacity of 148.6 mAh g-1 and excellent cycle stability (capacity retention 96.8 %) after 30th cycles at 3 C. The results demonstrated that Ti-doped NMC had superior advantages for LiNi1/3Mn1/3Co1/3O2 (NMC 111) material at the optimum temperature of 800 °C for 72 h. It is one of the potential cathode materials for Li-ion batteries.

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“…The electrification of ground transportation demands one to downsize the battery pack but improve the specific capacity and energy density as much as possible . For state-of-the-art lithium-ion (Li-ion) batteries, the specific capacity of the cathode material is limited by the intercalation/deintercalation working mechanism and cannot exceed 200 mA h g –1 . − …”

Section: Introductionmentioning

confidence: 99%

“…Recently, Li-X (X = S, Se, Te, I 2 ) batteries using conversion reaction-based cathode materials have attracted great attention due to their improved specific capacities. , Among these conversion-based cathode materials, S has the highest gravimetric capacity (1675 mAh g –1 ) and volumetric capacity (3461 mAh cm –3 ). However, the “shuttle effect” and the low conductivity of redox ends (S and Li 2 S) cause the commercialization of Li–S batteries to have a long way to go. − As the downstairs neighbor of S in the Periodic Table, Se can only deliver a gravimetric capacity of 675 mAh g –1 .…”

Section: Introductionmentioning

confidence: 99%

Chemistry of Defects in Crystalline Na₂Se: Implications for the Na–Se Battery

Liu

Deng

2020

J. Phys. Chem. C

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Selenium (Se) is a promising cathode material for next-generation alkali metal−ion batteries due to its high volumetric capacity and good conductivity. Using a first-principles approach, the present study systematically studies the electronic structure and the chemistry of defects of the final discharge product Na 2 Se for Na−Se batteries. It is found that Na 2 Se is insulating for free electron transfer. The charged native defects can act as carriers to transfer charges through crystalline Na 2 Se. The hole polaron p + has a very low diffusion barrier of 76 meV. However, p + makes a minor contribution to the conductivity of Na 2 Se due to its high formation energy of 1.92 eV. In the Na 2 Se crystal, the negatively charged Na vacancy (V Na − ) is the dominant defect with a formation energy of 0.71 eV, and its diffusion barrier is 258 meV which is much lower than that for other vacancies and interstitial defects. According to the present theoretical study, V Na − is the main charge carrier, and the corresponding ionic conductivity is 10 −13 S cm −1 at the room temperature. Such a low conductivity can limit the utilization of the active material and reduce the discharge voltage of Na−Se batteries, especially for Na−Se batteries based on the solid−solid reaction mechanism.

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Synthesis and properties of nanostructured LiNi1/3Co1/3Mn1/3O2 as cathode with lithium bis(oxalate)borate-based electrolyte to improve cycle performance in Li-ion battery

Cited by 14 publications

References 47 publications

Simultaneous Stabilization of LiNi_0.76Mn_0.14Co_0.10O₂ Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

Simultaneous Stabilization of LiNi_0.76Mn_0.14Co_0.10O₂ Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

Annealing effect on structural and electrochemical performance of Ti-doped LiNi1/3Mn1/3Co1/3O2 cathode materials

Chemistry of Defects in Crystalline Na₂Se: Implications for the Na–Se Battery

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Synthesis and properties of nanostructured LiNi1/3Co1/3Mn1/3O2 as cathode with lithium bis(oxalate)borate-based electrolyte to improve cycle performance in Li-ion battery

Cited by 14 publications

References 47 publications

Simultaneous Stabilization of LiNi0.76Mn0.14Co0.10O2 Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

Simultaneous Stabilization of LiNi0.76Mn0.14Co0.10O2 Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

Annealing effect on structural and electrochemical performance of Ti-doped LiNi1/3Mn1/3Co1/3O2 cathode materials

Chemistry of Defects in Crystalline Na2Se: Implications for the Na–Se Battery

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Simultaneous Stabilization of LiNi_0.76Mn_0.14Co_0.10O₂ Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

Simultaneous Stabilization of LiNi_0.76Mn_0.14Co_0.10O₂ Cathode and Lithium Metal Anode by Lithium Bis(oxalato)borate as Additive

Chemistry of Defects in Crystalline Na₂Se: Implications for the Na–Se Battery