High-performance, nano-structured LiMnPO4 synthesized via a polyol method

Wang, Deyu; Buqa, Hilmi; Crouzet, Michael; Deghenghi, Gianluca; Drézen, Thierry; Exnar, Ivan; Kwon, Nam-Hee; Miners, James H.; Poletto, Laetitia; Grätzel, Michaël

doi:10.1016/j.jpowsour.2008.09.077

Cited by 305 publications

(272 citation statements)

References 22 publications

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“…One such example is LiMnPO4 [447][448][449][450][451][452][453][454][455][456][457][458], which is isostructural to that of olivine LiFePO4, while possessing a higher operating voltage (4.1 vs. 3.5 V, respectively) [378,448], and hence energy densities which could exceed 700 Wh kg -1 . At this point, it should be suggested that LiMnPO4 represents a more realistic candidate compared to LiCoPO4 or LiNiPO4, since the working voltage of LiCoPO4 or LiNiPO4 electrodes (4.9 and 5.1 V, respectively), currently lies outside regions of stability of the commonly-employed organic (carbonate) electrolytes [378].…”

Section: Other Transition Metal Phosphates (Limpo4)mentioning

confidence: 99%

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

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Access to the full text of the published version may require a subscription. Rights © Tsinghua University Press and Springer-Verlag Berlin ABSTRACTThe performance of the lithium-ion cell is heavily dependent on the ability of the host electrodes to accommodate and release Li + ions from the local structure. While the choice of electrode materials may define parameters such as cell potential and capacity, the process of intercalation may be physically limited by the rate of solid-state Li + diffusion. Increased diffusion rates in lithium-ion electrodes may be achieved through a reduction in the diffusion path, accomplished by a scaling of the respective electrode dimensions.In addition, some electrodes may undergo large volume changes associated with charging and discharging, the strain of which, may be better accommodated through nanostructuring. Failure of the host to accommodate such volume changes may lead to pulverisation of the local structure and a rapid loss of capacity. In this review article, we seek to highlight a number of significant gains in the development of nanostructured lithium-ion battery architectures (both anode and cathode), as drivers of potential next-generation electrochemical energy storage devices.

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Section: Other Transition Metal Phosphates (Limpo4)mentioning

confidence: 99%

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

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“…The drawback of LiFePO 4 is a low potential (3.6 V vs. Li þ /Li), leading to a maximum energy density of 578 Wh kg À1 (170 mAh g À1 Â 3.6 V). In contrast, LiMnPO 4 has a higher potential (4.1 V vs. Li þ /Li) with 171 mAh g À1 theoretical capacity, thus providing a potentially 20% higher energy density of 701 Wh kg À1 (170 mAh g À1 Â 4.1 V) than that of LiFePO 4 . LiCoPO 4 and LiNiPO 4 have even higher cell potentials of 4.8 and 5.1 vs. Li þ /Li, respectively, but a lack of stable electrolytes at such high potentials, preventing their commercial application [7e9].…”

Section: Introductionmentioning

confidence: 98%

“…A twopronged approach in reducing the particle size of LiMnPO 4 on one hand and having a carbon coating on the surface of LiMnPO 4 particles on the other hand are most promising ways to obtain the high capacity due to the improvement of both ionic and electronic conductivity. Recently, Hatta et al reported a high rate capability using pyrolytic carbon and Li 3 PO 4 coating on rod shaped LiMnPO 4 nanoparticles, providing 160 and 145 mAh g À1 at 0.1C and 1C, respectively [10]. Platelet shaped LiMnPO 4 was reported to have a discharge capacity of 100 and 113 mAh g À1 at 1C at room temperature and 50 C, respectively [4].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Hatta et al reported a high rate capability using pyrolytic carbon and Li 3 PO 4 coating on rod shaped LiMnPO 4 nanoparticles, providing 160 and 145 mAh g À1 at 0.1C and 1C, respectively [10]. Platelet shaped LiMnPO 4 was reported to have a discharge capacity of 100 and 113 mAh g À1 at 1C at room temperature and 50 C, respectively [4].…”

Section: Introductionmentioning

confidence: 99%

“…Olivines typically consist of slightly distorted LiO 6 and MO 6 octahedra and PO 4 tetrahedra in the crystal structure [1,11,12]. For LiMnPO 4 with space group Pnma, the Li þ ion diffusion occurs in a zigzag-ed path along the b axis via edge sharing LiO 6 octahedra [13,14]. One way to improve the rate capability is thus to shorten the [010] diffusion path for Li þ ion release and insertion.…”

Section: Introductionmentioning

confidence: 99%

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Nanoparticle shapes of LiMnPO4, Li+ diffusion orientation and diffusion coefficients for high volumetric energy Li+ ion cathodes

Kwon

Yin

Vavrova

et al. 2017

Journal of Power Sources

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h i g h l i g h t s g r a p h i c a l a b s t r a c tNanoparticles of LiMnPO 4 were fabricated in rod, elongated as well as cubic shapes. The 1D Li þ preferred diffusion direction for each shape was determined via electron diffraction spot patterns. The shape of nano-LiMnPO 4 varied the diffusion coefficient of Li þ because the Li þ diffusion direction and the path length were different. The particles with the shortest dimension along the b-axis provided the highest diffusion coefficient, resulting in the highest gravimetric capacity of 135, 100 and 60 mAh g À1 at 0.05C, 1C and 10C, respectively. Using ball-milling, a higher loading of nano-LiMnPO 4 in the electrode was achieved, increasing the volumetric capacity to 263 mAh cm À3 , which is ca. 3.5 times higher than the one obtained by hand-mixing of electrode materials. Thus, the electrochemical performance is governed by both the diffusion coefficient of Li þ , which is dependent on the shape of LiMnPO 4 nanoparticles and the secondary composite structure.

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Synthesis of High Performance LiMn _0.8 Fe _0.2 PO ₄ /C Cathode Material for Lithium Ion Batteries: Effect of Calcination Temperature

Dai¹,

Chen²,

Fang³

et al. 2015

EPD Congress 2015

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High-performance, nano-structured LiMnPO4 synthesized via a polyol method

Cited by 305 publications

References 22 publications

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Nanoparticle shapes of LiMnPO4, Li+ diffusion orientation and diffusion coefficients for high volumetric energy Li+ ion cathodes

Synthesis of High Performance LiMn _0.8 Fe _0.2 PO ₄ /C Cathode Material for Lithium Ion Batteries: Effect of Calcination Temperature

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High-performance, nano-structured LiMnPO4 synthesized via a polyol method

Cited by 305 publications

References 22 publications

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Nanoparticle shapes of LiMnPO4, Li+ diffusion orientation and diffusion coefficients for high volumetric energy Li+ ion cathodes

Synthesis of High Performance LiMn 0.8 Fe 0.2 PO 4 /C Cathode Material for Lithium Ion Batteries: Effect of Calcination Temperature

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Synthesis of High Performance LiMn _0.8 Fe _0.2 PO ₄ /C Cathode Material for Lithium Ion Batteries: Effect of Calcination Temperature