polymer electrolytes for lithium batteries

... polymer electrolyte; polymer- in-salt system; lithium secondary battery. Introduction A lithium secondary battery using solid polymer electrolyte [SPE] is an attractive energy source for ... in nanocomposite solid polymer electrolytes. Key Eng Mater 2007, 336-338:526- 529. 8. Wei X, Shriver DF: Highly conductive polymer electrolytes containing rigid polymers. Chem Mater 1998, ... Polystyrene-Al 2 O 3 composite solid polymer electrolyte for lithium secondary battery Yu-Jeong Lim †1 , Yu-Ha An †1 , and Nam-Ju Jo* 1 1 Department of Polymer Science and Engineering, Pusan...

Ngày tải lên: 20/06/2014, 23:20

... materials for lithium- ion batteries. Nature 2000, 407:496. 4. Taberna PL, Mitra S, Poizot P, Simon P, Tarascon JM: High rate capabilities Fe 3 O 4 -based Cu nano-architectured electrodes for lithium- ion ... reversible lithium storage in Bacillus subtilis-directed porous Co 3 O 4 nanostructures. ACS Nano 2011, 5:443. 7. Li Y, Tan B, Wu Y: Mesoporous Co 3 O 4 nanowire arrays for lithium ion batteries ... Park JG, Sung YM, Chung KY, Cho WI, Kim DW: Enhanced cycling performance of Fe 0 /Fe 3 O 4 nanocomposite electrode for lithium- ion batteries. Nanotechnology 2009, 20:295205. 10. Ko YD, Kang...

Ngày tải lên: 20/06/2014, 21:20

... electrodes for lithium- ion batteries. J Mater Chem 2005, 15:2257-2267. 6. Feng L, Chang Y, Wu L, Lu T: Electrochemical behavior of spinel LiMn 2 O 4 as positive electrode in rechargeable lithium ... cathode materials for lithium secondary batteries. J Power Sources 2007, 167:178-184. 17. Yi TF, Li Cy, Zhu YR, Shu J, Zhu RS: Comparison of structure and electrochemical properties for 5 V LiNi 0.5 Mn 1.5 O 4 and ... 82.47.Aa; 82.47 a; 82.45.Fk. Keywords: lithium ion batteries, cathode s, nanocomposites, coprecipitation Introduction The development of rechargeable lithium ion batteries depends critica lly on the...

Ngày tải lên: 20/06/2014, 23:20

Ngày tải lên: 21/06/2014, 17:20

... affect the nano-Fe 2 O 3 performance as anode material for lithium ion batter- ies [24,25]. Nanosize materials have large surface areas and high surface energy. For lithium ion battery applications, ... provide more sites for lithium ion intercalation/de-intercalation. The improvement seen in the nanorods electrodes may be also attributed to the shorter pathways in the nanorods for lithium ion diffusion. ... hydrother- mal method. Both the nanorods and commercial Fe 2 O 3 were t ested as anode materials for lithium ion batteries. Electrochemical mea- surements, such as CV and EIS, demonstrated that the nanorods had...

Ngày tải lên: 19/03/2014, 16:48

... voltage of 5 kV. Elemental analysis Microanalysis was performed by Columbia Analytics (formerly Desert Analytics) in Tuc son, AZ. Samples (100 mg) for elemental analysis were prepared by lyo- philizing ... no toxicity being observed for CuCNPs containing 3, or 5 wt.% Cu. Discussion Synthesis and characterization of Cu-loaded polymeric nanoparticles A prototypical approach for sequestering and releasing metal ... chemotherapeutics [35,36]. We have therefore designed a carboxylate-functiona- lized, polymer- based nanoparticle capable of sequester- ing a prototypical metal, Cu 2+ , for the ultimate goal of delivering...

Ngày tải lên: 21/06/2014, 02:20

... materials for lithium- ion batteries. Chem Mater 2008, 20:3617. doi:10.1186/1556-276X-6-397 Cite this article as: Seo et al.: Low-temperature synthesis of CuO- interlaced nanodiscs for lithium ion ... nanodiscs, finally forming interlaced disc nanostructures, as reported in similar CuO nanostructures, by hydro- thermal conversion from Cu(OH) 2 at 100-130°C [23,24]. Therefore, the formation mechanism ... nano- wires, nanorods, nanotubes) have been shown to be good candidates as electro des for lithium ion batteries [6-8]. Zhang et al. reported the size dependency of the electrochemical properties...

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Ngày tải lên: 05/07/2014, 21:20

... causes the polymer degradation [75- 83]. Figure 8 shows the generally accepted pathways of degradation and stabilization where radical formation is initiating and vital step for polymer degradation ... 4.3.1. Nanocomposites of biodegradable polymers 4.3.1.1.Biopolymers as matrix 4.3.1.2.Biopolymers as fillers 4.3.2. Nanocomposites of non-biodegradable polymers 4.4. Other factors 4.5. Advantages ... weight or polymeric stabilizers can be introduced. The polymeric stabilizers can be prepared by following three ways [73]; i) Grafting of stabilizer onto polymer 2 Key words: Polymer, ...

Ngày tải lên: 20/03/2014, 13:05

... safety and cycleability for rechargeable (secondary) batteries. In spite of extensive efforts of many researchers, it will be some time before rechargeable lithium metal batteries are placed on ... relates to surface films formed on lithium in the ADVANCES IN LITHIUM- ION BATTERIES 89 reason; instead, nonaqueous solutions containing lithium salts, such as and as electrolytes are used in ... In fact, lithium metal has been widely used as an anode in primary lithium cells for more than two decades. However, prolonged deposition/dissolution cycling causes dendrite formation of the lithium...

Ngày tải lên: 16/04/2014, 11:22

... of health system performance has been criticized for not using appropriate method of transformation and the z-scores transformation has been recommended (SPRG, 2001). For time – dependent ... way to prize the most performing countries and penalize the less performing ones. An advantage of this transformation is that, using the same percentile transformation for different years, any ... total exports. Therefore, to avoid adding up apples and pears, before going to the aggregation stage it is necessary to bring the indicators to the same standard, by transforming them in pure,...

Ngày tải lên: 05/05/2014, 13:58

... of 9 (page number not for citation purposes) Journal of Orthopaedic Surgery and Research Open Access Research article Biomechanical testing of a polymer- based biomaterial for the restoration ... techniques for avoiding re-herniation have been introduced to the market, with interesting first clinical results [20]. In combination with biomaterials, these techniques might prove to be useful for ... problems in order to be beneficial for the patient. In spinal surgery, preventive procedures to avoid common follow-up complications are conceivable in operations for disc herniation with predominant...

Ngày tải lên: 20/06/2014, 04:20

... alternative [17,18]. However, this approach is also destructive [19,20], and the polymer surfaces are rapidly etched before the formation of surface hydroxyl groups is opti- mized. In this study, we developed ... method previously described [17] for anti-adhesion. Using the PDMS-coated AAO template as a master mold, a NOA63 polymer replica mold was prepared. The UV curable NOA63 polymer precursor was spread on ... After curing with UV radiation (l = 365 nm) for 1 h, the replica mold was peeled off, providing a surface nanopillar-patterned NOA63 polymer layer formed on a PET film (Figure 1b). F or the generation...

Ngày tải lên: 20/06/2014, 23:20

... of electrosprayed films can therefore be attributed to the conformation of the polymer. Keywords: organic light-emitting diodes; electrospray, polymer, conformation. Figure 1 Table 1. ... 120°C for 20 min. About 80-nm-thick emissive layer [EML] was formed by electrospray or spin-coating process and then annealed at 80°C for 30 min. A schematic diagram of the experimental setup for ... Qian et al. [19] reported a peak shift of PVK due to polymer conformation caused by the solvent effect. We believe that a similar polymer conformation effect results not only from the solvent,...

Ngày tải lên: 20/06/2014, 23:20