LiNi0.5Mn1.5O4 microrod with ultrahigh Mn3+ content: A high performance cathode material for lithium ion battery

Li, Lang; Sui, Jinsong; Chen, Jian; Lu, Yangcheng

doi:10.1016/j.electacta.2019.03.086

Cited by 34 publications

(11 citation statements)

References 47 publications

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“…The unprecedented cycling performance of the Sb002-LNMO material is significantly better than other reported modified LNMO materials (Figure S9a, Supporting Information). [5,20,27,[37][38][39][40][41][42][43][44][45][46] Figure 3b shows the corresponding charge/discharge curves of the undoped and Sbdoped LNMO. The electrochemical plateaus at around 4.7 V correspond to Ni 2+ /Ni 3+ and Ni 3+ /Ni 4+ redox couples, while that at 4.0 V is characteristic of the Mn 3+ /Mn 4+ redox couple.…”

Section: Electrochemical Performancementioning

confidence: 99%

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi_0.5Mn_1.5O₄ Spinel Cathodes for Lithium‐Ion Batteries

Liang

Peterson

et al. 2021

Advanced Materials

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The development of reliable and safe high‐energy‐density lithium‐ion batteries is hindered by the structural instability of cathode materials during cycling, arising as a result of detrimental phase transformations occurring at high operating voltages alongside the loss of active materials induced by transition metal dissolution. Originating from the fundamental structure/function relation of battery materials, the authors purposefully perform crystallographic‐site‐specific structural engineering on electrode material structure, using the high‐voltage LiNi0.5Mn1.5O4 (LNMO) cathode as a representative, which directly addresses the root source of structural instability of the Fdm structure. By employing Sb as a dopant to modify the specific issue‐involved 16c and 16d sites simultaneously, the authors successfully transform the detrimental two‐phase reaction occurring at high‐voltage into a preferential solid‐solution reaction and significantly suppress the loss of Mn from the LNMO structure. The modified LNMO material delivers an impressive 99% of its theoretical specific capacity at 1 C, and maintains 87.6% and 72.4% of initial capacity after 1500 and 3000 cycles, respectively. The issue‐tracing site‐specific structural tailoring demonstrated for this material will facilitate the rapid development of high‐energy‐density materials for lithium‐ion batteries.

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Section: Electrochemical Performancementioning

confidence: 99%

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi_0.5Mn_1.5O₄ Spinel Cathodes for Lithium‐Ion Batteries

Liang

Peterson

et al. 2021

Advanced Materials

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“…To further conducted the surface chemistry changes of LMO electrode, the XPS of LMO before cycling, after cycling in solid state electrolyte and liquid electrolyte at 80 °C are shown in figure g, 4 h and 4i, respectively. The binding energy of Mn 3+ located at 642.0 eV (Mn 2p3/2) and 653.5 eV (Mn 2p1/2), and Mn 4+ located at 643.3 eV (Mn 2p3/2) and 654.6 eV (Mn 2p1/2) . The content of Mn 3+ and Mn 4+ is related to the peak area.…”

Section: Resultsmentioning

confidence: 95%

High Voltage, Flexible and Low Cost All‐Solid‐State Lithium Metal Batteries with a Wide Working Temperature Range

Zhang

Fei

et al. 2020

ChemistrySelect

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In this work, a flexible 4 V all-solid-state lithium metal battery is reported. In this battery, polyvinylidene fluoride (PVDF)/ Li 6.40 La 3 Zr 1.40 Ta 0.60 O 12 (LLZTO) composite electrolyte is used as the electrolyte and low cost LiMn 2 O 4 (LMO) is used as the cathode. It is found that this all-solid-state battery can work from room temperature to 80°C. At 80°C, a capacity retention of 78.8% is obtained after 50 cycles while battery with liquid electrolyte last only one cycle. Further researches discover that liquid electrolyte react continuously with LMO while the solidstate electrolyte is stable with LMO at high temperature. These results may be useful for the developing of low cost, high energy and high safety batteries system.

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“…This procedure involves the mixing of reactant powders followed by two different thermal treatments: a synthesis and an annealing step . To date, Li 2 CO 3 , LiOH, and Li(CH 3 COO)⋅2 H 2 O have been used as the main Li precursors . We propose to use LiCl as a lower‐cost Li source, obtained from β‐spodumene in previous investigations to advance from the mineral to an end‐use application.…”

Section: Introductionmentioning

confidence: 99%

“…[16,17] To date, Li 2 CO 3 ,L iOH, and Li(CH 3 COO)·2 H 2 Oh ave been used as the main Li precursors. [18][19][20][21][22][23][24][25] We propose to use LiCl as al ower-cost Li source,o btained from b-spodumene in previousi nvestigations [26] to advance from the mineral to an end-use application.F urthermore, ao ne-step heatt reatment is proposed to save energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Simple and Eco‐Friendly Fabrication of Electrode Materials and Their Performance in High‐Voltage Lithium‐Ion Batteries

et al. 2020

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The huge consumption of rechargeable Li‐ion batteries (LIBs) make it necessary to recover and reuse the different components of spent batteries, thus favoring sustainable development. Graphite is a critical material in the manufacture of the current LIBs so recycling it should be prioritized in the management of spent batteries. In this work, graphite is manually recovered from spent batteries used in smartphones. The impurities from the different components of the batteries are drastically reduced by simple leaching with HCl. This treatment significantly improves the delivered specific capacity, with average values of 300 and 390 mAh g−1 without and with leaching, respectively. To test recycled graphite as an anode material in real cells, it is paired with LiNi0.5Mn1.5O4, the most promising cathode material for high‐voltage batteries. LiCl, produced directly by chlorination of spodumene, is used as the Li source to obtain the spinel sample. The real cell gives satisfactory values for both initial specific capacity (100 mAh g−1) and capacity retention after 100 cycles. These results are comparable to and in some cases even better than those for cells that use commercial graphite and conventional Li sources as primary raw materials. Moreover, the cell shows good performance during the rate capability test; the delivered capacity values decrease smoothly from 73 to 62 mAh g−1 while the rate increases from 0.1 to 1 C.

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LiNi0.5Mn1.5O4 microrod with ultrahigh Mn3+ content: A high performance cathode material for lithium ion battery

Cited by 34 publications

References 47 publications

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi_0.5Mn_1.5O₄ Spinel Cathodes for Lithium‐Ion Batteries

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi_0.5Mn_1.5O₄ Spinel Cathodes for Lithium‐Ion Batteries

High Voltage, Flexible and Low Cost All‐Solid‐State Lithium Metal Batteries with a Wide Working Temperature Range

Simple and Eco‐Friendly Fabrication of Electrode Materials and Their Performance in High‐Voltage Lithium‐Ion Batteries

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LiNi0.5Mn1.5O4 microrod with ultrahigh Mn3+ content: A high performance cathode material for lithium ion battery

Cited by 34 publications

References 47 publications

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi0.5Mn1.5O4 Spinel Cathodes for Lithium‐Ion Batteries

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi0.5Mn1.5O4 Spinel Cathodes for Lithium‐Ion Batteries

High Voltage, Flexible and Low Cost All‐Solid‐State Lithium Metal Batteries with a Wide Working Temperature Range

Simple and Eco‐Friendly Fabrication of Electrode Materials and Their Performance in High‐Voltage Lithium‐Ion Batteries

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Product

Resources

About

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi_0.5Mn_1.5O₄ Spinel Cathodes for Lithium‐Ion Batteries

Crystallographic‐Site‐Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High‐Voltage LiNi_0.5Mn_1.5O₄ Spinel Cathodes for Lithium‐Ion Batteries