High-capacity composite anodes with SnSb and Li2.6Co0.4N for solid polymer electrolyte cells

Yang, Jun; Takeda, Yasuo; Capiglia, Claudio; Liu, X.D.; Imanishi, Nobuyuki; Yamamoto, Osamu

doi:10.1016/s0378-7753(03)00124-1

Cited by 12 publications

(3 citation statements)

References 10 publications

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“…To obtain enhanced electrochemical performance of SnSb, many groups reported various nanostructured composites using different carbon sources and various synthetic tools. [254][255][256] Among the various nanostructured SnSb/C composite materials, a mechano-and electrochemically controlled SnSb/C nanocomposite was recently reported 254 which involved transforming micron-sized Sn and Sb powders into 10 nm (by mechanochemical control) and 2-3 nm (by electrochemical control) SnSb nanocrystallites that were uniformly distributed within a carbon matrix. This SnSb/C nanocomposite showed a highly reversible reaction with Li, a high charge capacity of 706 mAh g À1 , a good initial coulombic efficiency of 81%, and a high capacity of above 550 mAh g À1 over 300 cycles.…”

Section: Insertion Reaction: Msbmentioning

confidence: 99%

Li-alloy based anode materials for Li secondary batteries

et al. 2010

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Research to develop alternative electrode materials with high energy densities in Li-ion batteries has been actively pursued to satisfy the power demands for electronic devices and hybrid electric vehicles. This critical review focuses on anode materials composed of Group IV and V elements with their composites including Ag and Mg metals as well as transition metal oxides which have been intensively investigated. This critical review is devoted mainly to their electrochemical performances and reaction mechanisms (313 references).

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Section: Insertion Reaction: Msbmentioning

confidence: 99%

Li-alloy based anode materials for Li secondary batteries

et al. 2010

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“…From the possible options, Li 2.6 Co 0.4 N exhibits impressive results by delivering a specific capacity of over 700 mA h g -1 . [68][69][70][71][72][73][74][75][76][77][78][79] It has become the popular material for the compensation of ICL for variety of negative electrodes; for example natural graphite, [80] MCMB, [81,82] hard-carbon, [83] Si-graphite composite, [84] SnSb x, [85][86][87][88][89][90][91][92] SnO, [89,93,94] SiO x, [93,95] LiTi 2 O 4, [96] TiP 2 O 7 [97] and Co 3 O 4 (Li 2.6 Co 0.2 Cu 0.2 N). [90] Also, the potential use of Li 3-x M x N in regards to the fabrication of all solid-state batteries has been highlighted by Takeda et al [98] in the review (Figure 7).…”

Section: 6 Co 04 N/li 3 N Decompositionmentioning

confidence: 99%

Best Practices for Mitigating Irreversible Capacity Loss of Negative Electrodes in Li‐Ion Batteries

Aravindan

Lee

Srinivasan

2017

Advanced Energy Materials

130

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aprotic organic solvent. Poor rate capability, limited capacity (theoretical capacity of ≈372 mA h g -1 ), Li-plating issues, irreversible electrolyte decomposition in the first cycle, and subsequent solid electrolyte interphase (SEI) formation certainly offset the possible usage in high power Li-ion power packs. [5] Therefore, intense research activity has been carried out to replace the conventional graphitic anodes.Unfortunately, insertion type materials such as oxides, sulfides, and phosphates offer a higher working potential (>1 V vs Li), and decent practical capacity compared to graphite, which certainly dilutes the net energy density of the cell. For instance, Li 4 Ti 5 O 12 , the anatase and bronze phases of TiO 2 , LiCrTiO 4 , Nb 2 O 5 , TiNb 2 O 7 , TiP 2 O 7 , LiTi 2 (PO 4 ) 3 etc., have been extensively evaluated. [5,7,14] Spinel Li 4 Ti 5 O 12 , which is commercially available, utilizes a LiMn 2 O 4 cathode for HEV and EV applications, although it offers low theoretical energy density (≈200 W h kg -1 ). [13] Apart from the insertion, the emergence of high capacity, high power alloy and conversion (often called displacement) type materials has attracted widespread attention in the last two decades. It is worth mentioning that alloybased anodes with a hybrid cathode have been commercialized by Sony in a Nexelion configuration. Unlike that of the insertion process, an alloy and conversion-type electrode experiences several issues that need to be addressed, such as large volume variation, capacity fading upon cycling, and a significant irreversible capacity loss (ICL) during the first cycle, [15] before being employed as prospective an anode in cells for practical configurations.Although insertion materials experience ICL, it is negligible, whereas only 40 to 70% of the initial capacity is found irreversible in alloy and conversion type materials. The ICL may vary from material to material, and morphology to morphology primarily because of the decomposition of the electrolyte solution, which includes solvents and a salt reduction process. [16] Nevertheless, volume variation and capacity fading can certainly be improved by adopting a surface modification process preferably with carbon coating, making a composite with carbonaceous materials, or by preparing the electrode with either an active or inactive matrix. [17] Therefore, eliminating the ICL is critical before the full-cell assembly when using such high capacity conversion or alloy type anodes. [2,18,19] It is clear that the SEI layer is the main culprit for the significant ICL observed in the first cycle, since the Li consumption takes place in an Development of high performance lithium-ion (Li-ion) power packs is a topic receiving significant attention in research today. Future development of the Li-ion power packs relies on the development of high capacity and high rate anodes. More specifically, materials undergo either conversion or an alloying mechanism with Li. However, irreversible capacity loss (ICL) is one of the prime issues for this type ...

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“…Spinel Li 4 Ti 5 O 12 has attracted a lot of attention as one of the most promising anode material candidates for rechargeable lithium-ion batteries [1][2][3] , due to its good cycle stability, low raw material cost, high capacity, excellent safety performance, easy preparation, and environmental friendliness compared with other anode material [4][5][6] . However, its low ionic and electronic conductivity excessively influenced its electrochemical performance, which really hinders its using for commercial application [7] .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Performances of Li4Ti5-xAlxO12 (x=0.03, 0.05, 0.10) as Anode Materials for Lithium Ion Battery

2013

AMR

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Li4Ti5-xAlxO12(x=0.03, 0.05, 0.10) were prepared by a solution method. The electrochemical performances including charge-discharge and AC impedance were investigated. The structure of the samples were characterized by X-ray diffraction. The results revealed that proper Al doped into Li4Ti5O12would not change or destroy the crystal structure. Li4Ti5-xAlxO12(x=0.03, 0.05) had better capacity than Li4Ti5O12, because of the decrease of electric resistance. But when the quality percent of Al was too big, it will bring negative influence to Li4Ti5O12. Al3+doping did not change the electrochemical process, instead enhanced the electronic conductivity and ionic conductivity. The reversible capacity and cycling performance were effectively improved.

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High-capacity composite anodes with SnSb and Li2.6Co0.4N for solid polymer electrolyte cells

Cited by 12 publications

References 10 publications

Li-alloy based anode materials for Li secondary batteries

Li-alloy based anode materials for Li secondary batteries

Best Practices for Mitigating Irreversible Capacity Loss of Negative Electrodes in Li‐Ion Batteries

Electrochemical Performances of Li<sub>4</sub>Ti<sub>5-x</sub>Al<sub>x</sub>O<sub>12 </sub>(<i>x</i>=0.03, 0.05, 0.10) as Anode Materials for Lithium Ion Battery

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