Enhanced electrochemical properties of LiFe1−xMnxPO4/C composites synthesized from FePO4·2H2O nanocrystallites

Chen, Li; Yuan, Yongqiang; Xia, Feng; Li, Mingwei

doi:10.1016/j.jpowsour.2012.04.089

Cited by 34 publications

(21 citation statements)

References 30 publications

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“…MnPO 4 ÁH 2 O powder was prepared using a similar precipitation method described in the literature [38]. 0.08 mol Mn(NO 3 [20].…”

Section: Materials Synthesismentioning

confidence: 99%

“…In an effort to improve the rate and cyclic performances of LiMnPO 4 , the employed methods include reducing the LiMnPO 4 crystal size to nano-scale [10][11][12], coating LiMnPO 4 crystallites with carbon [13,14], and substituting Mn 2+ with other cations such as Fe 2+ , Mg 2+ , Ti 2+ , Ca 2+ , Zr 4+ , or Cu 2+ [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. These methods may enhance transport properties of the material's electron and Li ion, and consequently make LiMnPO 4 obtain the outstanding electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

“…These methods may enhance transport properties of the material's electron and Li ion, and consequently make LiMnPO 4 obtain the outstanding electrochemical performance. Many researchers pay close attention to the LiMn 1Àx Fe x PO 4 [3,[15][16][17][18][19][20][21][22][23] 4 , two foreseeable benefits of Fe substitution include enhancing its electronic conductivity and stabilizing its structures by weakening Jahn-Teller distortion of the Mn 3+ ion.…”

Section: Introductionmentioning

confidence: 99%

“…There exist two plateaus of $4.0 and $3.5 V on its discharge curves at low rates, which correspond to the redox potentials of Mn 3+ / Mn 2+ and Fe 3+ /Fe 2+ (vs. Li + /Li) couples, respectively. Their length ratio reflects the Mn/Fe ratio in the LiMn 1Àx Fe x PO 4 [15,20]. However, LiMn 1Àx Fe x PO 4 is not a simple mixture of LiMnPO 4 and LiFe-PO 4 , but a solid solution.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synergetic Fe substitution and carbon connection in LiMn1−xFexPO4/C cathode materials for enhanced electrochemical performances

Yan

Wang

et al. 2015

Journal of Alloys and Compounds

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“…MnPO 4 ÁH 2 O powder was prepared using a similar precipitation method described in the literature [38]. 0.08 mol Mn(NO 3 [20].…”

Section: Materials Synthesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synergetic Fe substitution and carbon connection in LiMn1−xFexPO4/C cathode materials for enhanced electrochemical performances

Yan

Wang

et al. 2015

Journal of Alloys and Compounds

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“…The slight lattice enlargement is beneficial to providing more space for lithium ion insertion and de-insertion [9]. The average crystallite sizes of all samples are calculated with the Scherrer's equation [20] and the results are also listed in Table 1. The crystallite sizes of the particles are found to be reduced after La 3+ doping.…”

Section: Apparatusmentioning

confidence: 99%

Synthesis of La-doped Li2MnSiO4 nano-particle with high-capacity via polyol-assisted hydrothermal method

Dong

Zhang

Wang

et al. 2015

Electrochimica Acta

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Recent Advances of Mn‐Rich LiFe_1‐_yMn_yPO₄ (0.5 ≤ y < 1.0) Cathode Materials for High Energy Density Lithium Ion Batteries

Deng

Yang

Zou

et al. 2017

Advanced Energy Materials

114

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LiMnPO 4 (LMP) is one of the most potential candidates for high energy density (≈700 W h kg -1 ) lithium ion batteries (LIBs). However, the intrinsically low electronic conductivity and lithium ion diffusion coefficient of LMP result in its low performance. To overcome these challenges, it is an effective approach to prepare nanometer-sized Fe-doping LMP (LFMP) materials through optimization of the preparation routes. Moreover, surface coating can improve the ionic and electronic conductivity, and decrease the interfacial side reactions between the nanometer particles and electrolyte. Thus, a uniform surface coating will lead to a significant enhancement of the electrochemical performance of LFMP. Currently, considerable efforts have been devoted to improving the electrochemical performance of LiFe 1-y Mn y PO 4 (0.5 ≤ y < 1.0) and some important progresses have been achieved. Here, a general overview of the structural features, typical electrochemical behavior, delithiation/ lithiation mechanisms, and thermodynamic properties of LiFe 1-y Mn y PO 4based materials is presented. The recent developments achieved in improvement of the electrochemical performances of LiFe 1-y Mn y PO 4 -based materials are summarized, including selecting the synthetic methods, nanostructuring, surface coating, optimizing Fe/Mn ratios and particle morphologies, cation/ anion doping, and rational designing of LFMP-based full cells. Finally, the critical issues at present and future development of LiFe 1-y Mn y PO 4 -based materials are discussed.of LIBs. [3,4] Investigation on the design and preparation of high performance cathode materials has received extensive attention from academic and industrial research worldwide. The first successful example of LiCoO 2 discovered by Goodenough and his co-workers in 1980 is a dominating cathode material in commercial portable electronic devices. [5] It displays medium specific capacity and high compaction density when it is employed as a cathode material in the fabrication of electrode, resulting in its high energy density. In order to improve the safety of LIBs, decrease the cost and to enhance specific capacity, researchers have been trying to find other efficient materials. Many oxide-based positive insertion materials, such as LiMn 2 O 4 , [6] LiMn 1.5 Ni 0.5 O 4 , [7] LiNi 0.8 Co 0.15 Al 0.05 O 2 [8]and LiMn 0.33 Co 0.33 Ni 0.33 O 2[9] were proposed as possible alternatives to the existing layered LiCoO 2 cathodes because of its own shortcomings, such as the toxicity and high cost of cobalt as well as its poor thermal stability. [10] Figure 1 illustrates crystal structures and discharge curves for some typical cathode materials, including layered LiCoO , spinel LiNi 0.5 Mn 1.5 O 4 and olivine LiFePO 4 , in which spinel and olivine materials show flat potential plateaus, while layered materials display sloping potential profiles. [11] Besides the transition metal oxides-based cathode materials, phospho-olivines introduced firstly by Goodenough and co-workers in 1997 as cathode materials for L...

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Enhanced electrochemical properties of LiFe1−xMnxPO4/C composites synthesized from FePO4·2H2O nanocrystallites

Cited by 34 publications

References 30 publications

Synergetic Fe substitution and carbon connection in LiMn1−xFexPO4/C cathode materials for enhanced electrochemical performances

Synergetic Fe substitution and carbon connection in LiMn1−xFexPO4/C cathode materials for enhanced electrochemical performances

Synthesis of La-doped Li2MnSiO4 nano-particle with high-capacity via polyol-assisted hydrothermal method

Recent Advances of Mn‐Rich LiFe_1‐_yMn_yPO₄ (0.5 ≤ y < 1.0) Cathode Materials for High Energy Density Lithium Ion Batteries

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Enhanced electrochemical properties of LiFe1−xMnxPO4/C composites synthesized from FePO4·2H2O nanocrystallites

Cited by 34 publications

References 30 publications

Synergetic Fe substitution and carbon connection in LiMn1−xFexPO4/C cathode materials for enhanced electrochemical performances

Synergetic Fe substitution and carbon connection in LiMn1−xFexPO4/C cathode materials for enhanced electrochemical performances

Synthesis of La-doped Li2MnSiO4 nano-particle with high-capacity via polyol-assisted hydrothermal method

Recent Advances of Mn‐Rich LiFe1‐yMnyPO4 (0.5 ≤ y < 1.0) Cathode Materials for High Energy Density Lithium Ion Batteries

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Recent Advances of Mn‐Rich LiFe_1‐_yMn_yPO₄ (0.5 ≤ y < 1.0) Cathode Materials for High Energy Density Lithium Ion Batteries