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喲喲william木蟲(chóng) (小有名氣)
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[求助]
一段英文文獻(xiàn)，求翻譯
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The sulfur–carbon composite thus obtained was individually mixed with 10 wt.% of Super P carbon and 10 wt.% of polyvinylidene fluoride (PVDF, Kureha) binder in an N-methylpyrrolidinone (NMP, Sigma–Aldrich) solution. The well-mixed slurry was tapecasted onto a sheet of aluminum foil and the film was dried in a convection oven at 50 ◦C for 24 h, followed by pressing with a roller and punching out circular electrodes of a 0.5 in. diameter. The cathode electrode disks were dried in a vacuum oven at 50 ◦C for an hour before assembling the cell. Similar electrodes with the same overall amount of Super P carbon and binder were also fabricated with the as-synthesized pure sulfur under the same conditions. Next, 1.0 M LiCF3SO3 (Acros Organics) salt was added to a mixture of 1,2-Dimethoxyethane (DME, Acros Organics) and 1,3- Dioxolane (DOL, Acros Organics) (1:1, v/v) and stirred for 5 min to prepare the electrolyte. The CR2032 coin cells were then assembled with the prepared cathode disks, prepared electrolyte, Celgard polypropylene separators, lithium foil anodes, and nickel foam current collectors. The cell assembly was conducted in a glove box filled with argon. The cyclic voltammetry (CV) data were collected with a Volta- Lab PGZ 402 Potentiostat at a scan rate of 0.05 mV s−1 between 3.5 and 1.0 V with lithium metal as the reference electrode (Li/Li+, −3.045 V vs. NHE). The charge–discharge profiles, cyclability, and rate capability were assessed with an Arbin battery cycler. All cells were rested for 30 min before electrochemical cycling. The cells were then discharged to 1.5 V and charged to 2.8 V for one full cycle. An additional charge condition of achieving a capacity of 1C (C = 1675 mAh g−1, the mass is based on the sulfur content in cathodes) was set for the pure sulfur cathode to avoid the infinite charging because the charge plateau would never reach 2.8 V due to the severe shuttle effect [9,10]. After cycling, coin cells were opened in the glove box to retrieve the cycled cathodes and examined by SEM to investigate their morphological changes. Electrochemical impedance spectroscopy (EIS) measurements were performed with a Solartron Impedance Analyzer (SI 1260 + SI 1287) in the frequency range of 1 MHz to 100 mHz with an AC voltage amplitude of 5 mV. |
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huangzx1314
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愛(ài)與雨下: 金幣+1 2013-04-24 21:00:41
喲喲william: 金幣+15, 翻譯EPI+1, ★★★很有幫助, 大神，下面還有一段呢？？ 2013-04-24 23:28:48
愛(ài)與雨下: 金幣+1 2013-04-24 21:00:41
喲喲william: 金幣+15, 翻譯EPI+1, ★★★很有幫助, 大神，下面還有一段呢？？ 2013-04-24 23:28:48
好多專業(yè)詞翻譯可能不準(zhǔn)確啊 ~The sulfur–carbon composite thus obtained was individually mixed with 10 wt.% of Super P carbon and 10 wt.% of polyvinylidene fluoride (PVDF, Kureha) binder in an N-methylpyrrolidinone (NMP, Sigma–Aldrich) solution. The well-mixed slurry was tapecasted onto a sheet of aluminum foil and the film was dried in a convection oven at 50 ◦C for 24 h, followed by pressing with a roller and punching out circular electrodes of a 0.5 in. Diameter. 通過(guò)以上方法得到的硫碳復(fù)合材料在甲基吡咯烷酮（NMP, Sigma–Aldrich）溶液中分別逐步與質(zhì)量比為10%的Super P carbon以及質(zhì)量比為10%的聚偏二氟乙烯粘結(jié)劑（PVDF, Kureha）混合。將這種懸浮液澆注在一鋁箔片上，這個(gè)涂層在50℃的對(duì)流恒溫烘箱中干燥24小時(shí)，之后用輥壓制并沖壓出直徑為0.5的圓形電極。 The cathode electrode disks were dried in a vacuum oven at 50 ◦C for an hour before assembling the cell. Similar electrodes with the same overall amount of Super P carbon and binder were also fabricated with the as-synthesized pure sulfur under the same conditions. Next, 1.0 M LiCF3SO3 (Acros Organics) salt was added to a mixture of 1,2-Dimethoxyethane (DME, Acros Organics) and 1,3- Dioxolane (DOL, Acros Organics) (1:1, v/v) and stirred for 5 min to prepare the electrolyte. The CR2032 coin cells were then assembled with the prepared cathode disks, prepared electrolyte, Celgard polypropylene separators, lithium foil anodes, and nickel foam current collectors. The cell assembly was conducted in a glove box filled with argon. 這一陰極電極磁盤(pán)在50℃的真空干燥箱中干燥1小時(shí)后組裝成電池。在同樣的合成條件下，加入同樣量的Super P carbon以及粘結(jié)劑制備相同的電極。之后，將1.0M的LiCF3SO3鹽（Acros Organics）加入1,2二甲氧基乙烷（DME, Acros Organics）與1,3二氧戊環(huán)（DOL, Acros Organics）體積比為1:1的混合液中攪拌5分鐘作為電解質(zhì)。用制備好的陰極片、電解質(zhì)、卡爾格德聚丙烯分隔符、箔陽(yáng)極、泡沫鎳電流收集器組裝CR2032紐扣電池。電池組裝在充氬氣的手套箱中進(jìn)行操作。 |
喲喲william2樓2013-04-24 20:56:06
喲喲william
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3樓2013-04-24 23:52:23
huangzx1314
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喲喲william: 金幣+20, ★★★很有幫助 2013-04-25 10:22:00
喲喲william: 金幣+20, ★★★很有幫助 2013-04-25 10:22:00
 The cyclic voltammetry (CV) data were collected with a Volta-Lab PGZ 402 Potentiostat at a scan rate of 0.05 mV s−1 between 3.5 and 1.0 V with lithium metal as the reference electrode (Li/Li+, −3.045 V vs. NHE). The charge–discharge profiles, cyclability, and rate capability were assessed with an Arbin battery cycler. All cells were rested for 30 min before electrochemical cycling. 循環(huán)伏安法（CV）數(shù)據(jù)是以金屬鋰作為參考電極（Li/Li+, −3.045 V vs. NHE），通過(guò)電壓穩(wěn)定器（型號(hào)：Volta-Lab[伏爾泰] PGZ 402）在3.5到1.0V之間以0.05毫伏每秒的速率掃描。充放電曲線，循環(huán)周期以及大電流放電能力通過(guò)燃料電池周期計(jì)得到。所有的電池都是在放置30分鐘之后進(jìn)行電化學(xué)循環(huán)。 The cells were then discharged to 1.5 V and charged to 2.8 V for one full cycle. An additional charge condition of achieving a capacity of 1C (C = 1675 mAh g−1, the mass is based on the sulfur content in cathodes) was set for the pure sulfur cathode to avoid the infinite charging because the charge plateau would never reach 2.8 V due to the severe shuttle effect [9,10]. 電池放電至電壓為1.5V然后充電至電壓為2.8V為一個(gè)完全循環(huán)周期。對(duì)于純的硫電極為了避免由于嚴(yán)重的穿梭效應(yīng)充電平臺(tái)永遠(yuǎn)不會(huì)達(dá)到2.8 V而導(dǎo)致的無(wú)限次充電過(guò)程，以達(dá)到1C（C = 1675 mAh g−1, 這一個(gè)數(shù)值是給予在陰極中的硫含量）電量設(shè)置為一個(gè)充電周期。 After cycling, coin cells were opened in the glove box to retrieve the cycled cathodes and examined by SEM to investigate their morphological changes. Electrochemical impedance spectroscopy (EIS) measurements were performed with a Solartron Impedance Analyzer (SI 1260 + SI 1287) in the frequency range of 1 MHz to 100 mHz with an AC voltage amplitude of 5 mV. 在充電循環(huán)試驗(yàn)后，在手套箱中將紐扣電池拆開(kāi)取出循環(huán)電極并通過(guò)掃描電鏡（SEM）觀察其形貌變化。通過(guò)阻抗分析儀在頻率為1MHz到100MHz之間，電壓變化幅度為5毫V的條件下檢測(cè)材料的阻抗。 |
4樓2013-04-25 09:13:12
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