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于成熟,多家汽車公司已經(jīng)具備批量生產(chǎn)能力,多款電動(dòng)汽車已經(jīng)上市。法國(guó):法國(guó)政府不僅采用多項(xiàng)政策優(yōu)惠方案,“買環(huán)保汽車享受高額補(bǔ)貼”等鼓勵(lì)市民使用電動(dòng)汽車,法國(guó)政府還將投入4億歐元,用于包括電動(dòng)汽車在內(nèi)的清潔能源汽車研發(fā)。奧巴馬明確表示,美國(guó)政府計(jì)劃投入數(shù)十億美元用來(lái)推動(dòng)插入式混合動(dòng)力汽車的發(fā)展,目標(biāo)是在2015年有100萬(wàn)輛電動(dòng)汽車投入使用。日前,美國(guó)加利福尼亞州Santa-Monica市政府在SantaMonica修建了一座極具未來(lái)感的太陽(yáng)能充電站。為方便市民出行,巴黎市政府?dāng)M出了一張“充電站分布圖”,市民可以輕松地根據(jù)該圖找到最近的充電站。法國(guó): 巴黎是最早將清潔能源汽車引入公交系統(tǒng)的城市。 日本:據(jù)報(bào)道,以色列和日本都希望通過(guò)制訂明確的電動(dòng)汽車充電站建設(shè)計(jì)劃,幫助電動(dòng)汽車在本國(guó)早日實(shí)現(xiàn)商業(yè)化。在金融危機(jī)下,它更成為拉動(dòng)汽車產(chǎn)業(yè)、刺激經(jīng)濟(jì)復(fù)蘇的重要一環(huán)。h/L)循環(huán)壽命(次)鉛酸電池3513090500鎳鎘電池5517094500鎳氫電池802251431000鋰離子電池1201803601200磷酸鐵鋰電池120902102000燃料電池50060充電系統(tǒng)對(duì)于實(shí)際的電動(dòng)汽車而言是不可缺少的支撐系統(tǒng),同時(shí)電力企業(yè)作為關(guān)系國(guó)家能源戰(zhàn)略和國(guó)民經(jīng)濟(jì)命脈的國(guó)有骨干企業(yè),大力推動(dòng)電動(dòng)汽車的發(fā)展、充電站樁的建設(shè)具有重大意義。高鐵電池就是以高價(jià)鐵鹽 陰極材料如:高鐵酸鋇、高鐵酸鉀構(gòu)成的水系電化學(xué)電池體系。目前,越來(lái)越多的研究人員選用鋰離子電池作為電動(dòng)汽車的動(dòng)力電池,因?yàn)殇囯x子動(dòng)力電池有以下優(yōu)點(diǎn):工作電壓高(是鎳鎘電池氫鎳電池的3倍); 比能量大(可達(dá)165WH/㎏,是氫鎳電池的3倍);體積??;質(zhì)量輕;循環(huán)壽命長(zhǎng);自放電率低;無(wú)記憶效應(yīng);無(wú)污染等。純電動(dòng)汽車的最大瓶頸是電池。經(jīng)過(guò)近十年的發(fā)展,我國(guó)電動(dòng)汽車的研發(fā)取得明顯進(jìn)展。特別在電動(dòng)汽車領(lǐng)域,我國(guó)企業(yè)在關(guān)鍵的電池技術(shù)上獲得了突破,具備了率先啟動(dòng)產(chǎn)業(yè)化的條件,有實(shí)現(xiàn)跨越的機(jī)會(huì)。電動(dòng)汽車詳細(xì)可分為三類:即僅以車載蓄電池(或電容)為動(dòng)力源的純電動(dòng)汽車,以多個(gè)車載動(dòng)力源提供動(dòng)力的混合動(dòng)力電動(dòng)汽車(當(dāng)前主要是指以內(nèi)燃機(jī)及蓄電池)和以燃料電池為動(dòng)力的燃料電池汽車。電動(dòng)汽車在環(huán)保、清潔、節(jié)能等方面占據(jù)明顯的優(yōu)勢(shì),據(jù)相關(guān)統(tǒng)計(jì),污染物排量?jī)H為普通內(nèi)燃機(jī)車的2-8%,基本無(wú)污染物排放。At last firemen have put out a big forest fire亞運(yùn)村電動(dòng)汽車充電樁技術(shù)方案廣州南方電力集團(tuán)科技發(fā)展有限公司2010年1月第一部分 充電樁發(fā)展的現(xiàn)狀 目前,珍惜地球上有限的石油資源,保護(hù)人類賴以生存的自然環(huán)境,減少溫室氣體排放量,遏制全球變暖趨勢(shì)已經(jīng)成為全世界各國(guó)面臨的共同話題。 This is the prettiest carpet I have ever seen,39。We are going back now,39。 I said. 39。 I forgot to put you off.39。 Is this Woodford Green ?39。ll have to get off here,39。I sat in the front of the bus to get a good view of the countryside. After some time, the bus stopped. Looking round, I realized with a shock that I was the only passenger left on the bus. 39。m going to Woodford Green,39。I love travelling in the country, but I don39。 had put it on the floor, he promptly went to sleep again.When a plane from London arrived at Sydney airport, workers began to unload a number of wooden boxes which contained clothing. No one could account for the fact that one of the boxes was extremely heavy. It suddenly occurred to one of the workers to open up the box. He was astonished at what he found. A man was lying in the box on top of a pile of woollen goods. He was so surprised at being discovered that he did not even try to run away. After he was arrested, the man admitted hiding in the box before the plane left London. He had had a long and unfortable trip, for he had been confined to the wooden box for over ten hours. The man was ordered to pay amp。 Only 25 per cent a thief now!39。The whole village soon learnt that a large sum of money had been lost. Sam Benton, the local butcher, had lost his wallet while taking his savings to the postoffice. Sam was sure that the wallet must have been found by one of the villagers, but it was not returned to him. Three months passed, and then one morning, Sam found his wallet outside his front door. It had been wrapped up in newspaper and it contained half the money he had lost, together with a note which said: 39。The strap needsLesson43 Over the South Pole 飛越南極dance39。And a woman can39。Lesson57 Can I help you, madam? 你要買什么,夫人?A few cars, however, pleted the race. The winning car reached a speed of forty miles an hourmuch faster than any of its rivals. It sped downhill at the end of the race and its driver had a lot of trouble trying to stop it. The race gave everyone a great deal of pleasure. It was very different from modern car races but no less exciting. A woman in blue jeans stood at the window of an expensive shop. Though she hesitated for a moment, she finally went in and asked to see a dress that was in the window. The assistant who served her did not like the way she was dressed. Glancing at her scornfully, he told her that the dress was sold. The woman walked out of the shop angrily and decided to punish the assistant next day. She returned to the shop the following morning dressed in a fur coat, with a handbag in one hand and a long umbrella in the other. After seeking out the rude assistant she asked for the same dress. Not realizing who she was, the assistant was eager to serve her this time with great difficulty, he climbed into the shop window to get the dress. As soon as she saw it, the woman said s many ties.39。t have too many hats,39。 slowly. It obviously could not tell the difference between Indian music and jazz!In 1929, three years after his flight over the North Pole, the American explorer, R. E. Byrd, successfully flew over the South Pole for the first time. Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble. At one point, it seemed certain that their plane would crash. It could only get over the mountains if it rose to 10,000 feet. Byrd at once ordered his men to throw out two heavy food sacks. The plane was then able to rise and it cleared the mountains by 400 feet. Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight. The aircraft was able to fly over the endless white plains without difficulty. mending,39。A thief, yes, 39。 In time, all Sam39。345 for the cost of the trip. The normal price of a ticket is amp。Lesson47 A thirsty ghost 嗜酒的鬼魂Lesson48 Did you want to tell me something? 你想對(duì)我說(shuō)什么嗎?t like losing my way. I went on an excursion recently, but my trip took me longer than I expected. I said to the conductor as I got on the bus,39。 I39。 the conductor said. 39。 I asked. 39。 39。I39。 said the conductor. 39。 she said. She gazed at it for some time then added, 39。 汽車作為現(xiàn)代社會(huì)化大工業(yè)的產(chǎn)物,為推動(dòng)人類文明向前躍進(jìn)做出了巨大的貢獻(xiàn),給人類的生活帶來(lái)了舒適和便捷。電動(dòng)汽車具有無(wú)(低)污染物排放、噪音低、能效高、維修及運(yùn)行成本低等優(yōu)點(diǎn),它的廣泛普及將是緩解大氣環(huán)境污染和能源緊缺的最有效方式之一。經(jīng)過(guò)近30年的努力,特別是過(guò)去10多年國(guó)家汽車生產(chǎn)和消費(fèi)政策的調(diào)整,我國(guó)汽車產(chǎn)業(yè)呈現(xiàn)爆發(fā)式增長(zhǎng),產(chǎn)銷規(guī)模在19982008年的10年間保持 了20%以上的年均增幅。 電動(dòng)汽車為我國(guó)汽車產(chǎn)業(yè)縮短差距、實(shí)現(xiàn)跨越提供了難得的重大戰(zhàn)略機(jī)遇。到2009年,我國(guó)已形成約1800項(xiàng)專利,并開發(fā)出了多款電動(dòng)汽車樣車。電動(dòng)汽車對(duì)電池的要求比較高,高比能、高比功率、快速充電和具有深度放電功能、循環(huán)和使用壽命長(zhǎng)。如果采用鋰離子電池,電動(dòng)汽車成本 難以降低。首次提出高鐵酸鹽作正極材料的是以色列科學(xué)家,但是高鐵電池穩(wěn)定性及安全性很差,應(yīng)用研究進(jìn)展 非常緩慢,目前還處于初步研究階段。(1)、國(guó)外發(fā)展現(xiàn)狀及相關(guān)政策新能源汽車替代傳統(tǒng)燃料汽車,也許只是時(shí)間問(wèn)題。電動(dòng)汽車、在眾新