Strategy for synthesizing spherical LiNi 0.5 Mn 1.5 O 4 cathode material for lithium ion batteries

Gao, Jian; Li, Jianjun; Song, Fei; Lin, Jianxiong; He, Xiangming

doi:10.1016/j.matchemphys.2014.12.030

Cited by 15 publications

(1 citation statement)

References 21 publications

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“…This method provides the opportunity to produce scalable materials of controllable morphologies that are adaptable to existing high volume calcination processes currently used in battery material manufacturing . An important distinction of these previous research efforts with template materials is that the templates are typically micrometer‐sized particles, and a major goal was to produce active materials with high tap densities to improve active material loading within the battery electrodes . Our strategy for lithium‐ion battery material templates is to synthesize a precursor that decomposes to give low tap density because it forms loosely agglomerated primary sub‐micrometer particles in a secondary particle with large voids.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Koenig

2016

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One attribute that has limited performance for some lithiumion battery active material systems is large particle size. While many methods have been reported in the literature for producing high-performance sub-micrometer sized battery particles, often these procedures are difficult to adapt to large battery electrode powder production and/or the processing is relatively expensive compared to traditional methods. We report a highly scalable process to produce high performance sub-micrometer battery active material using an initial demonstration cathode chemistry, LiCoO 2 (LCO). We adopted a template-based process which took advantage of a cobalt oxalate precursor material with a rod morphology. Lithiation of the precursor via calcination produced loosely connected sub-micrometer sized LCO particles which were easily dispersed into individual particles through a low energy mechanical method. The sub-micrometer sized LCO particulates exhibited excellent electrochemical performance as lithium-ion battery cathode active materials, including high discharge capacity, rate capability, and coulombic efficiency.

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Section: Introductionmentioning

confidence: 99%

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Koenig

2016

ChemistrySelect

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Synthesis of LiNi_0.5Mn_1.5O₄ via Ammonia‐free Co‐precipitation Method: Insight in the Effects of the Lithium Additions on the Morphology, Structure and Electrochemical properties

Chen

Tang

et al. 2019

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Stoichiometric sphere-like Ni 0.25 Mn 0.75 CO 3 precursors have been synthesized by the ammonia-free co-precipitation via adjusting the Na 2 CO 3 precipitant feeding. As an important factor in LiNi 0.5 Mn 1.5 O 4 synthesis process, the effects of lithium additions on the physicochemical and electrochemical properties of the LiNi 0.5 Mn 1.5 O 4 were extensively investigated. The lithium additions increase can strengthen the LiNi 0.5 Mn 1.5 O 4 crystal growth and crystallization. Lack of lithium additions causes the formation of the lithium deficient compounds, while the excess of lithium additions induces the phase transformation from Fd-3m to P4 3 32 accompanied by the formation of the rock salt phase. The as-prepared spinel LiNi 0.5 Mn 1.5 O 4 with lithium additions of 0.505 delivers 135.8 mAh * g -1 at 147.0 mA * g -1 with capacity retention of 90.06 % after 300 cycles. Even at 2940 mA * g -1 , the discharge capacity can reach to 96.7 mAh * g -1 .These excellent electrochemical performances are mainly ascribed to the Ni 0.25 Mn 0.75 CO 3 precursors with homogenous elements distributions, the good morphology and crystal structure of LiNi 0.5 Mn 1.5 O 4 at appropriate amounts of lithium additions.[a] Dr.

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Ruthenium doped LiMn1.5Ni0.5O4 microspheres with enhanced electrochemical performance as lithium-ion battery cathode

Zhou

Chen

et al. 2021

J Mater Sci: Mater Electron

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Strategy for synthesizing spherical LiNi 0.5 Mn 1.5 O 4 cathode material for lithium ion batteries

Cited by 15 publications

References 21 publications

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Synthesis of LiNi_0.5Mn_1.5O₄ via Ammonia‐free Co‐precipitation Method: Insight in the Effects of the Lithium Additions on the Morphology, Structure and Electrochemical properties

Ruthenium doped LiMn1.5Ni0.5O4 microspheres with enhanced electrochemical performance as lithium-ion battery cathode

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Strategy for synthesizing spherical LiNi 0.5 Mn 1.5 O 4 cathode material for lithium ion batteries

Cited by 15 publications

References 21 publications

High‐Performance LiCoO2 Sub‐Micrometer Materials from Scalable Microparticle Template Processing

High‐Performance LiCoO2 Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Synthesis of LiNi0.5Mn1.5O4 via Ammonia‐free Co‐precipitation Method: Insight in the Effects of the Lithium Additions on the Morphology, Structure and Electrochemical properties

Ruthenium doped LiMn1.5Ni0.5O4 microspheres with enhanced electrochemical performance as lithium-ion battery cathode

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High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Synthesis of LiNi_0.5Mn_1.5O₄ via Ammonia‐free Co‐precipitation Method: Insight in the Effects of the Lithium Additions on the Morphology, Structure and Electrochemical properties