Two-Dimensional SnS2Nanoplates with Extraordinary High Discharge Capacity for Lithium Ion Batteries

Lithium-rich manganese-based layered oxides with a composition of xLi2MnO3·(1 − x)LiMO2 (M = Mn, Co, Ni, etc.) are attractive, due to their high discharge capacity.

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Carbon-coated β-MnO2 for cathode of lithium-ion battery

Sustainable Energy & Fuels ◽

10.1039/c9se01048c ◽

2020 ◽

Vol 4 (4) ◽

pp. 1704-1711

Author(s):

Zige Tai ◽

Ming Shi ◽

Wei Zhu ◽

Xin Dai ◽

Yanfei Xin ◽

...

Keyword(s):

Lithium Ion Battery ◽

Discharge Capacity ◽

Lithium Ion ◽

High Discharge ◽

High Discharge Capacity ◽

Carbon Coated

We prepared carbon-coated β-MnO2 for the cathode of a lithium-ion battery with high discharge capacity.

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Surface Treatment of the Lithium Boron Oxide Coated LiMn2O4 Cathode Material in Li-Ion Battery

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.280-283.671 ◽

2007 ◽

Vol 280-283 ◽

pp. 671-676 ◽

Cited By ~ 4

Author(s):

Hong Wei Chan ◽

Jenq Gong Duh ◽

Shyang Roeng Sheen

Keyword(s):

Particle Size ◽

Cathode Material ◽

Discharge Capacity ◽

Average Particle Size ◽

Lithium Ion ◽

Cyclic Test ◽

Average Particle ◽

Laser Scattering ◽

High Discharge ◽

High Discharge Capacity

Surface modification on the electrode has a vital impact on lithium-ion batteries, and it is essential to probe the mechanism of the modified film on the surface of the electrode. In this study, a Li2O-2B2O3 film was coated on the surface of the cathode material by solution method. The cathode powders derived from co-precipitation method were calcined with various weight percent of the surface modified glass to form fine powder of single spinel phase with different particle size, size distribution and morphology. The thermogravimetry/differential thermal analysis was used to evaluate the appropriate heat treatment temperature. The structure was confirmed by the X-ray diffractometer along with the composition measured by the electron probe microanalyzer. From the field emission scanning electron microscope image and Laser Scattering measurements, the average particle size was in the range of 7-8µm. The electrochemical behavior of the cathode powder was examined by using two-electrode test cells consisted of a cathode, metallic lithium anode, and an electrolyte of 1M LiPF6. Cyclic charge/discharge testing of the coin cells, fabricated by both coated and un-coated cathode material, provided high discharge capacity. Furthermore, the coated cathode powder showed better cyclability than the un-coated one after the cyclic test. The introduction of the glass-coated cathode material revealed high discharge capacity and appreciably decreased the decay rate after cyclic test.

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Synthesis ofxLiMnPO4·yLi3V2(PO4)3/C Nanocomposites for Lithium Ion Batteries Using Tributyl Phosphate as Phosphor Source

Journal of Nanotechnology ◽

10.1155/2017/4030249 ◽

2017 ◽

Vol 2017 ◽

pp. 1-7

Author(s):

Yanming Wang ◽

Bo Zhu ◽

Xiaoyu Liu ◽

Fei Wang

Keyword(s):

Solid State ◽

Electrochemical Performance ◽

Lithium Ion Batteries ◽

Tributyl Phosphate ◽

Lithium Ion ◽

Composite Cathode ◽

High Discharge ◽

High Discharge Capacity ◽

Organic Phosphor ◽

Average Size

ThexLiMnPO4·yLi3V2(PO4)3/C (x/y= 1 : 0, 12 : 1, 8 : 1, 6 : 1, 4 : 1, 0 : 1) composite cathode materials are synthesized using tributyl phosphate as a novel organic phosphor source via a solid-state reaction process. All obtainedxLiMnPO4·yLi3V2(PO4)3/C composites present similar particles morphology with an average size of ca. 100 nm and low extent agglomeration. The electrochemical performance of pristine LiMnPO4/C can be effectively improved by adding small amounts of Li3V2(PO4)3additives. The 4LiMnPO4·Li3V2(PO4)3/C has a high discharge capacity of 143 mAh g−1at 0.1 C and keeps its 94% at the end of 100 cycles.

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One-Dimensional Sb2Se3 Nanorods Synthesized through a Simple Polyol Process for High-Performance Lithium-Ion Batteries

Journal of Nanomaterials ◽

10.1155/2018/4273945 ◽

2018 ◽

Vol 2018 ◽

pp. 1-9

Author(s):

Yuan Tian ◽

Zhenghao Sun ◽

Yan Zhao ◽

Taizhe Tan ◽

Hui Liu ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Anode Materials ◽

High Performance ◽

Lithium Ion ◽

Cycling Performance ◽

Polyol Process ◽

High Discharge ◽

One Dimensional ◽

High Discharge Capacity ◽

Structural Characterizations

The good crystalline Sb2Se3 nanorods have been successfully synthesized through a simple polyol process. The detailed morphological and structural characterizations reveal that nanorods are composed of Sb2Se3 single crystals oriented along the [120] orientation; the tiny Sb2Se3 nanorods are found to display a higher crystallinity with respect to thick Sb2Se3 nanorods. The nanorods have been applied as anode materials for lithium-ion batteries, with tiny Sb2Se3 nanorod anodes delivering the relatively high discharge capacity of 702 mAh g−1 at 0.1 C and could maintain the capacity of 230 mAh g−1 after 100 cycles. A more stable cycling performance is also demonstrated on tiny Sb2Se3 nanorods, which is ascribed to their more pronounced one-dimensional nanostructure.

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Synthesis of the ZnO@ZnS Nanorod for Lithium-Ion Batteries

Energies ◽

10.3390/en11082117 ◽

2018 ◽

Vol 11 (8) ◽

pp. 2117 ◽

Cited By ~ 6

Author(s):

Haipeng Li ◽

Jiayi Wang ◽

Yan Zhao ◽

Taizhe Tan

Keyword(s):

Lithium Ion Batteries ◽

Solvothermal Method ◽

Synergetic Effect ◽

Lithium Ion ◽

Reversible Capacity ◽

Cycle Stability ◽

Ion Diffusion ◽

High Discharge ◽

High Discharge Capacity ◽

A Current

The ZnO@ZnS nanorod is synthesized by solvothermal method as an anode material for lithium ion batteries. ZnS is deposited on ZnO and assembles in nanorod geometry successfully. The nanosized rod structure supports ion diffusion by substantially reducing the ion channel. The close-linking of ZnS and ZnO improves the synergetic effect. ZnS is in the middle of the ZnO core and the external environment, which would greatly relieve the volume change of the ZnO core during the Li+ intercalation/de-intercalation processes; therefore, the ZnO@ZnS nanorod is helpful in maintaining excellent cycle stability. The ZnO@ZnS nanorod shows a high discharge capacity of 513.4 mAh g−1 at a current density of 200 mA g−1 after 100 cycles, while a reversible capacity of 385.6 mAh g−1 is achieved at 1000 mA g−1.

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Preparation and Electrochemical Properties of LiMn2O4 Nanofibers via Electrospinning for Lithium Ion Batteries

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.562-564.799 ◽

2012 ◽

Vol 562-564 ◽

pp. 799-802 ◽

Cited By ~ 1

Author(s):

Shuai Liu ◽

Yun Ze Long ◽

Hong Di Zhang ◽

Bin Sun ◽

Cheng Chun Tang ◽

...

Keyword(s):

Discharge Capacity ◽

Lithium Ion ◽

Average Diameter ◽

Potential Range ◽

Charge Capacity ◽

High Discharge ◽

High Discharge Capacity ◽

Initial Charge ◽

Charge Discharge ◽

Scanning Electron

LiMn2O4 nanofibers were prepared via electrospinning and followed by calcination. The surface morphology of as-spun and pure LiMn2O4 nanofibers was characterized by a scanning electron microscope (SEM) with an average diameter of 180 nm. After calcination at 800 °C in air for 5 h, charge/discharge capacity of pure LiMn2O4 nanofibers was measured in the potential range of 3.0 to 4.3 V. Battery testing showed that LiMn2O4 have a high discharge capacity of 80 mAh/g and 85% of the initial charge capacity was maintained for 5 cycles.

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Nanocrystalline Cellulose Supported MnO2 Composite Materials for High-Performance Lithium-Ion Batteries

Materials ◽

10.3390/ma14216619 ◽

2021 ◽

Vol 14 (21) ◽

pp. 6619

Author(s):

Quang Nhat Tran ◽

Thuan Ngoc Vo ◽

Il Tae Kim ◽

Ji Hyeon Kim ◽

Dal Ho Lee ◽

...

Keyword(s):

Electrical Conductivity ◽

Lithium Ion Batteries ◽

Discharge Capacity ◽

Large Volume ◽

High Performance ◽

Manganese Oxides ◽

Rate Capability ◽

Lithium Ion ◽

Nanocrystalline Cellulose ◽

High Discharge Capacity

The rate capability and poor cycling stability of lithium-ion batteries (LIBs) are predominantly caused by the large volume expansion upon cycling and poor electrical conductivity of manganese dioxide (MnO2), which also exhibits the highest theoretical capacity among manganese oxides. In this study, a nanocomposite of nanosized MnO2 and pyrolyzed nanocrystalline cellulose (CNC) was prepared with high electrical conductivity to enhance the electrochemical performance of LIBs. The nanocomposite electrode showed an initial discharge capacity of 1302 mAh g−1 at 100 mA g−1 and exhibited a high discharge capacity of 305 mAh g−1 after 1000 cycles. Moreover, the MnO2-CNC nanocomposite delivered a good rate capability of up to 10 A g−1 and accommodated the large volume change upon repeated cycling tests.

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