Significant improvement in performances of LiNi0.5Mn1.5O4 through surface modification with high ordered Al-doped ZnO electro-conductive layer

Sun, Hao; Xia, Bingbo; Liu, Weiwei; Fang, Guoqing; Wu, Jingjing; Wang, Haibo; Zhang, Ruixue; Kaneko, Shingo; Zheng, Junwei; Wang, Hongyu; Li, Decheng

doi:10.1016/j.apsusc.2015.01.120

Cited by 39 publications

(11 citation statements)

References 38 publications

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“…Universally, it is proved that surface coating using some metal oxides is an appropriate strategy to surmount these deficiencies of LNMO, such as Al 2 O 3 , ZnO, , TiO 2 , Fe 2 O 3 , LaFeO 3 , Li 2 SiO 3 , Li 2 SnO 3 , LiCoO 2 , etc. The results show that these metal oxides, working as a protective layer, could avoid the undesirable interface reactions and reduce the dissolution amounts of the transition metal ions.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, detrimental reactions may be expedited at elevated temperatures, 20 and it immensely obstructs the commercialized prospect of the high-voltage LNMO cathode for lithium-ion batteries. Universally, it is proved that surface coating using some metal oxides is an appropriate strategy to surmount these deficiencies of LNMO, such as Al 2 O 3 , 21 ZnO, 22,23 The results show that these metal oxides, working as a protective layer, could avoid the undesirable interface reactions and reduce the dissolution amounts of the transition metal ions. To a certain extent, these coating layers have improved the LMNO material performance.…”

Section: ■ Introductionmentioning

confidence: 99%

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Improved High Temperature Performance of a Spinel LiNi_0.5Mn_1.5O₄ Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Dong

Zhang

et al. 2019

ACS Omega

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The composite cathode material of the conductive polymer polyaniline (PANI)-coated spinel structural LiNi 0.5 Mn 1.5 O 4 (LNMO) for high-voltage lithium-ion batteries has been successfully synthesized by an in situ chemical oxidation polymerization method. The electrode of the LNMO–PANI composite material shows superior rate capability and excellent cycling stability. A capacity of 123.4 mAh g –1 with the capacity retention of 99.7% can be maintained at 0.5C after 200 cycles in the voltage range of 3.0–4.95 V (vs Li/Li + ) at room temperature. Even with cycling at 5C, a capacity of 65.5 mAh g –1 can still be achieved. The PANI coating layer can not only reduce the dissolution of Ni and Mn from the LNMO cubic framework into the electrolyte during cycling, but also significantly improve the undesirable interfacial reactions between the cathode and electrolyte, and markedly increase the electrical conductivity of the electrode. At 55 °C, the LNMO–PANI composite material exhibits more superior cyclic performance than pristine, that is, the capacity retention of 94.5% at 0.5C after 100 cycles vs that of 13.0%. This study offers an effective strategy for suppressing the decomposition of an electrolyte under the highly oxidizing (>4.5 V) and elevated temperature conditions.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Improved High Temperature Performance of a Spinel LiNi_0.5Mn_1.5O₄ Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Dong

Zhang

et al. 2019

ACS Omega

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“…Among various scientific strategies, surface modifications of LNMO have substantially been investigated through coating materials such as ZnO [8], RuO2 [9], BiOF [10], Li3PO4 [11], Al2O3 [12] and AlF3 [13]. Although most of them demonstrated the improvement in the cycle performance of LNMO to different degrees, coating by metal oxides is not much in favor of high rate properties because these inorganic coating layers are not good conductor and extra resistance tends to be inserted into lithium ion batteries according to Liu [7].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis of reduced graphene oxide-LiNi0.5Mn1.5O4 composites as 5 V cathode materials for Li-ion batteries

Chen

Hong

et al. 2016

J Mater Sci

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Composite materials consisting of reduced graphene oxide and LiNi0.5Mn1.5O4 were in-situ prepared by a simple one-step hydrothermal-treating method. The physical property and electrochemical performance of the composite materials were characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), charge/discharge testing and electrochemical impedance spectroscopy (EIS). The results demonstrate that the graphene oxide is partially reduced and uniformly in-situ anchored on the surface of LiNi0.5Mn1.5O4. As a result, the specific surface area of the composite material dramatically increases from 0.2488 m 2 •g-1 to 8.71 m 2 •g-1 and the initial specific discharge capacity improves from 125.8 mAh•g-1 to 140.2 mAh•g-1 , respectively. Furthermore, the capacity retention maintains 95.8 % after 100 cycles and the electrode polarization has significantly been lessened. At rates of 1 C, 2 C and 5 C, the composite material with 5 % reduced graphene oxide can deliver much higher capacities than the pristine LiNi0.5Mn1.5O4. Moreover, AC impedance test results show that the interfacial charge transfer impedance obviously reduced. It's confirmed that the introduction of reduced graphene oxide through hydrothermal treating is effective to enhance the electrochemical performance of the composite material.

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“…[21] Despite there has been a flurry of research on LNMO, the optimal performances in terms of efficiency and stability at elevated temperatures (> 45 °C) are still open issues. [22] Most of the above aspects affecting the reversibility of the charge/discharge processes may be related with the aggressive oxidative decomposition of conventional electrolytes at the high voltage values, the lattice 4 modifications due to the Jahn-Teller distortion of the mixed spinel, and the possible Mn dissolution from the cathode during cycling. [23] In the most favorable case, the resultant decomposition products can form a protective layer containing both organic compounds (poly-ethers and carbonates) and inorganic (LiF and LixPFyOz) species on the electrode surface, namely, a solid electrolyte interface (SEI) layer.…”

Section: Introductionmentioning

confidence: 99%

A Li‐Ion Battery Using Nanostructured Sn@C Alloying Anode and High‐Voltage LiNi_0.35Cu_0.1Mn_1.45Al_0.1O₄ Spinel Cathode

et al. 2022

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Nanostructured Sn@C anode is synthesized by carbon coating of nanosized tin for Li-ion battery.The Sn is detected by X-ray diffraction (XRD) and quantified over 40 wt. % by thermogravimetric analysis (TGA). Scanning and transmission electron microscopy (SEM and TEM) show a carbon matrix holding Sn nanometric particles operating from 0.8 to 0.01 V vs. Li + /Li with low resistance, as indicated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The Sn@C galvanostatically cycles in Li-cell with an initial capacity ranging from 630 mAh g -1 at 200 mA g -1 to 311 mAh g -1 at 1200 mA g -1 , that decreases after 25 cycles and subsequently stabilizes to values from 403 to 268 mAh g -1 , respectively. High-voltage LiNi0.35Cu0.1Mn1.45Al0.1O4 cathode is achieved by combining co-precipitation and high-temperature treatment. XRD and SEM demonstrate the crystalline structure of the disordered spinel without impurities, and a homogeneous submicron morphology. Cu and Al substitution for Ni and Mn leads to excellent reversibility and low impedance in Li-cell, with electrochemical process mainly evolving between 4.7 and 4.8 V vs. Li + /Li. The cathode reveals a capacity of ~110 mAh g -1 retained for 88% after 100 cycles at 0.6C rate. Sn@C and LiNi0.35Cu0.1Mn1.45Al0.1O4 are combined in a Li-ion cell suggested as a new energy storage system delivering 110 mAh g -1 at 0.33C rate with average voltage of 4.2 V and a practical energy of 165 Wh kg -1 . 2 Table of ContentA Sn@C/LiNi0.35Cu0.1Mn1.45Al0.1O4 Li-ion battery operating at 4.2 V with capacity of 120 mAh g -1 is proposed as new energy storage system.

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Significant improvement in performances of LiNi0.5Mn1.5O4 through surface modification with high ordered Al-doped ZnO electro-conductive layer

Cited by 39 publications

References 38 publications

Improved High Temperature Performance of a Spinel LiNi_0.5Mn_1.5O₄ Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Improved High Temperature Performance of a Spinel LiNi_0.5Mn_1.5O₄ Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Hydrothermal synthesis of reduced graphene oxide-LiNi0.5Mn1.5O4 composites as 5 V cathode materials for Li-ion batteries

A Li‐Ion Battery Using Nanostructured Sn@C Alloying Anode and High‐Voltage LiNi_0.35Cu_0.1Mn_1.45Al_0.1O₄ Spinel Cathode

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Significant improvement in performances of LiNi0.5Mn1.5O4 through surface modification with high ordered Al-doped ZnO electro-conductive layer

Cited by 39 publications

References 38 publications

Improved High Temperature Performance of a Spinel LiNi0.5Mn1.5O4 Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Improved High Temperature Performance of a Spinel LiNi0.5Mn1.5O4 Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Hydrothermal synthesis of reduced graphene oxide-LiNi0.5Mn1.5O4 composites as 5 V cathode materials for Li-ion batteries

A Li‐Ion Battery Using Nanostructured Sn@C Alloying Anode and High‐Voltage LiNi0.35Cu0.1Mn1.45Al0.1O4 Spinel Cathode

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Improved High Temperature Performance of a Spinel LiNi_0.5Mn_1.5O₄ Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

Improved High Temperature Performance of a Spinel LiNi_0.5Mn_1.5O₄ Cathode for High-Voltage Lithium-Ion Batteries by Surface Modification of a Flexible Conductive Nanolayer

A Li‐Ion Battery Using Nanostructured Sn@C Alloying Anode and High‐Voltage LiNi_0.35Cu_0.1Mn_1.45Al_0.1O₄ Spinel Cathode