Enhanced low voltage cycling stability of LiMn2O4 cathode by ZnO coating for lithium ion batteries

Zhao, Xinbing; Xie, Jun; Cao, Guozhong; Zhuang, Dagao; Zhu, Tiancheng; Tu, Jian

doi:10.1016/j.jallcom.2006.06.016

Cited by 87 publications

(53 citation statements)

References 23 publications

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“…Natural manganese dioxide (NMD) is a well-researched material that has found wide application in batteries (primary, secondary, and lithium ion) and supercapacitors [1][2][3][4]. The recent rapid growth in the type and availability of electronic devices has created demand for batteries with higher capacities.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of manganese dioxide: effect of quaternary amines

Biswal

Tripathy

Subbaiah

et al. 2013

J Solid State Electrochem

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Section: Introductionmentioning

confidence: 99%

Electrodeposition of manganese dioxide: effect of quaternary amines

Biswal

Tripathy

Subbaiah

et al. 2013

J Solid State Electrochem

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“…The second cell ("aged" sample further in the text) was cycled (106 times) down to 80% State of Health (SOH) at 1C charge rate and 16C discharge rate, then cycled 3 times at 1C-rate and discharged at 1C-rate before opening. The voltage window during cycling was 4.2 2.5 V. 6 in DMC and ethylene carbonate (EC)), embedded in an epoxy resin, and polished mechanically. Final polishing was made by an Ar ion beam.…”

Section: Methodsmentioning

confidence: 99%

“…Mn 4þ solid þ Mn 2þ solution , 2 and (iii) structural instability and loss of crystallinity in the bulk due to Li intercalation/deintercalation and associated structural transformations. 3 A number of modification techniques such as surface coating, 4 doping with suitable elements, 5 and core-shell structuring 6 have been applied to increase the cycling stability of the cathode particles. All these methods could significantly improve the LiMn 2 O 4 performance.…”

Section: Introductionmentioning

confidence: 99%

Li transport in fresh and aged LiMn2O4 cathodes via electrochemical strain microscopy

Luchkin

Romanyuk

Ivanov

et al. 2015

Journal of Applied Physics

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Transport properties of Li þ mobile ions in fresh and aged LiMn 2 O 4 battery cathodes were studied at the nanoscale via electrochemical strain microscopy (ESM), time spectroscopy, and voltage spectroscopy mapping. Both Vegard and plausible non-Vegard contributions to the ESM signal were identified in electrochemical hysteresis loops obtained on fresh and aged samples. In the fresh cathodes, the Vegard contribution dominates the signal, while in the aged samples different shape of hysteresis loops indicates an additional plausible non-Vegard contribution. Non-uniform spatial distribution of the electrochemical loop opening in LiMn 2 O 4 particles studied in the aged samples indicates stronger variation of the Li diffusion coefficient at the microscale as compared to the fresh specimens. Time spectroscopy measurements revealed a suppression of the local Li diffusivity in aged samples. The mechanisms of the cathode aging are discussed in the context of observed nanoscale ESM response. V C 2015 AIP Publishing LLC. [http://dx

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“…For instance, the nonmetals B [10][11][12], F [13][14][15], S [16], Br [17], the general metals Mg [18], Al [19], Ti [20,21], Cr [22,23], Fe [24], Co [19,[25][26][27], Ni [28], Cu [29], Zn [30][31][32], Ga [33], Zr [34], Ru [35], Ag [36,37], Sn [38], Au [39], the rare-earth metals La [40], Ce [41], Pr [42], Nd [43], Sm [44], Gd [45], and the actinide dopants Th [46], U [47]. Some researchers have also modified LiMn 2 O 4 with surface coating [48][49][50][51][52] electrolyte modification [53], laser annealing [54], pulsed laser deposition [55], process optimization …”

Section: Open Accessmentioning

confidence: 99%

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

et al. 2013

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Spinel LiMn 2 O 4 is an appealing candidate cathode material for Li-ion rechargeable batteries, but it suffers from severe capacity fading, especially at higher temperature (55 °C) during discharging/charging. In recent years, many attempts have been made to synthesize modified LiMn 2 O 4 . This paper reviews the recent research on the preparation and doping modes of doped LiMn 2 O 4 for modifying the LiMn 2 O 4. We firstly compared preparation methods for doped spinel LiMn 2 O 4 , such as solid state reactions and solution synthetic methods. Then we mainly discuss doping modes reported in recent years, such as bulk doping, surface doping and combined doping. A comparison of different doping modes is also provided. The research shows that the multiple-ion doping and combined doping modes of LiMn 2 O 4 used in Li-ion battery are excellent for improving different aspects of the electrochemical performance which holds great promise in the future. From this paper, we also can see that spinel LiMnO 4 as an attractive candidate cathode material for Li-ion batteries.

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Enhanced low voltage cycling stability of LiMn2O4 cathode by ZnO coating for lithium ion batteries

Cited by 87 publications

References 23 publications

Electrodeposition of manganese dioxide: effect of quaternary amines

Electrodeposition of manganese dioxide: effect of quaternary amines

Li transport in fresh and aged LiMn2O4 cathodes via electrochemical strain microscopy

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

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