Synthesis of novel high-voltage cathode material LiCoPO4 via rheological phase method

Tan, Long; Luo, Zhi‐Mei; Liu, Haowen; Yu, Ying

doi:10.1016/j.jallcom.2010.04.182

Cited by 59 publications

(18 citation statements)

References 27 publications

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“…The CV curves show that the shape of the first cycle is slight different while CV-profiles are reduplicated from the second cycle as revealed by the very close values of the mean peak maxima in the cathodic region at 4.60 V. The mean peak maximum in the oxidation region of the first cycle lies at 5.20 V, while the mean peak maxima shift from 5.10 V to 5.20 V from the second cycle on. This result is in good agreement with previous cyclic voltammetry investigations on LiCoPO 4 [8,10,27,28]. The shoulder at about 4.88 V in the oxidation curve could indicate a twosteps mechanism of lithium deintercalation as previously reported [26].…”

Section: Electrochemical Measurementssupporting

confidence: 93%

Preparation and characterization of carbon foams–LiCoPO4 composites

Dimesso

Cherkashinin

Spanheimer

et al. 2012

Journal of Alloys and Compounds

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Section: Electrochemical Measurementssupporting

confidence: 93%

Preparation and characterization of carbon foams–LiCoPO4 composites

Dimesso

Cherkashinin

Spanheimer

et al. 2012

Journal of Alloys and Compounds

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“…8) spectrum gives a binding energy value of 780.7 eV, which is consistent with the value reported to those for Co 2+ ions by Tan et al [27]. The XPS spectra for the P (2p) peak located at 134.1 eV is assigned to the P 5+ related compounds [28].…”

supporting

confidence: 86%

Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior

Gangulibabu

Kalaiselvi

Meyrick

et al. 2013

Electrochimica Acta

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Heating the carbonate rich precursor in an inert atmosphere produces a Co 2 P phase that is conductive. Addition of super P carbon resulted in an amorphous carbon coating on LiCoPO 4 particles. LiCoPO 4 /C nanorods with a co-existence of Co 2 P exhibit excellent discharge capacity with retention on multiple cycling. AbstractLiCoPO 4 /C nanocomposite with growth controlled by carbonate anions was synthesized via a unique solid-state fusion method. Carbonate anions in the form of H 2 CO 3 or a mixture of H 2 CO 3 + (NH 4 ) 2 CO 3 have been used as a growth inhibiting modifier to produce morphology controlled lithium cobalt phosphate. The presence of cobalt phosphide (Co 2 P) as a second phase improved the conductivity and electrochemical properties of the parent LiCoPO 4. The formation of Co 2 P is found to be achievable only in

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“…By contrast, the diffraction peaks belonging to olivine‐type LCP (JCPDF No. 32‐0552) can be obviously observed for LNMC@LCP‐5@G sample with higher LCP loading of 5.0 wt%, as presented in Figure b. Furthermore, single‐phase LCP with olivine structure (Figure S2b, Supporting Information) can be successfully fabricated according to the synthetic parameters we developed here.…”

Section: Resultsmentioning

confidence: 84%

Sur‐/Interface Engineering of Hierarchical LiNi_0.6Mn_0.2Co_0.2O₂@LiCoPO₄@Graphene Architectures as Promising High‐Voltage Cathodes toward Advanced Li‐Ion Batteries

Liang

Sun

et al. 2017

Adv Materials Inter

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Layered LiNi0.6Mn0.2Co0.2O2 (LNMC) cathode has attracted enormous attentions for Li‐ion batteries thanks to its appealing combination of large capacity and desirable thermal stability. But it still suffers from repugnant phase distortion and serious capacity degradation upon cycling particularly with high cut‐off voltages and elevated working temperatures. Herein, an efficient sur‐/interface engineering strategy to finely fabricate hierarchical LNMC@LiCoPO4@graphene (LNMC@LCP@G) architectures is purposefully devised. Physicochemical characterizations comprehensively reveal that a uniform LCP nanoshell adheres tightly to the surface of bulk LNMC, and G sheets intersperse among LNMC@LCP microparticles as electron “bridge.” By virtue of synergetic sur‐/interface contributions from the multicomponents, the LNMC@LCP@G cathodes exhibit encouraging Li‐storage behaviors including larger capacities, higher capacity retention, and better cycling performance with high upper cut‐off voltage of 4.6 V both at 25 and 55 °C, and enhanced thermal stability in the delithiated state. More significantly, it is strongly believed that the electrode design concept here holds huge promise for smart synthesis of other advanced Ni‐based cathodes for next‐generation rechargeable lithium power batteries.

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Synthesis of novel high-voltage cathode material LiCoPO4 via rheological phase method

Cited by 59 publications

References 27 publications

Preparation and characterization of carbon foams–LiCoPO4 composites

Preparation and characterization of carbon foams–LiCoPO4 composites

Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior

Sur‐/Interface Engineering of Hierarchical LiNi_0.6Mn_0.2Co_0.2O₂@LiCoPO₄@Graphene Architectures as Promising High‐Voltage Cathodes toward Advanced Li‐Ion Batteries

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Synthesis of novel high-voltage cathode material LiCoPO4 via rheological phase method

Cited by 59 publications

References 27 publications

Preparation and characterization of carbon foams–LiCoPO4 composites

Preparation and characterization of carbon foams–LiCoPO4 composites

Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior

Sur‐/Interface Engineering of Hierarchical LiNi0.6Mn0.2Co0.2O2@LiCoPO4@Graphene Architectures as Promising High‐Voltage Cathodes toward Advanced Li‐Ion Batteries

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Sur‐/Interface Engineering of Hierarchical LiNi_0.6Mn_0.2Co_0.2O₂@LiCoPO₄@Graphene Architectures as Promising High‐Voltage Cathodes toward Advanced Li‐Ion Batteries