考拉教授在不在？ 这个新闻是真的么？？？

昨日，记者从天津滨海高新区获悉，充放电次数可达5000次以上、一次充电即可满足续航里程为200到300公里需求的高能镍碳超级电容电池将在天津未来科技城下线，年底前正式投产。

高能镍碳超级电容电池是中科泰能科技发展有限公司的新能源专利项目，该新型电池在电动汽车用动力电源选择上实现了重大突破，攻克了现有一般电动汽车安全性差、充电时间长等技术壁垒。

该公司总工程师吴振龙介绍，“该电池具有高功率充放电特性，可以采用大电流15至20分钟快充模式，满足公交车线路循环发车的运营需要;运用在纯电动公交车上，一次充满电可以满足每天行驶200至300公里的能量需求;电池循环使用寿命长，充放电次数可达5000次以上，可满足纯电动公交车8年或45万公里以上需求，电池长期使用成本低。”吴振龙还表示，该电池的节能环保效果好，电池采用稀土和镍为主要材料，在生产和使用中不产生污染，电池使用完全可以全部回收再次利用，节约资源，保护环境。

据介绍，该技术产品已在山东省淄博市三条市内公交线路的公交车上批量装配，并实现三年零九个月的连续安全稳定运营。经成功测试后，目前，该款电池即将进入全面达产阶段，将以其国内领先的技术优势全面走向国内外新能源电源市场，满足动力、储能行业等领域对超级电容电池的迫切需求。

http://www.crrcgc.cc/g5122/s10222/t262898.aspx

大萝卜 发表于 2015-12-4 09:52

捣蛋 发表于 2015-12-5 21:27

捣蛋 发表于 2015-12-5 21:34

shweish 发表于 2015-12-5 22:07

又不是非要冲那么快

Here is where we run into some of the challenges with ultracapacitors, however. A typical 20-microfarad capacitor would be able to handle as much as 300 volts, while an ultracap would be rated at only 2.7 volts. At a higher voltage, the electrolyte starts to break down. So realistically we’re talking about an ultracapacitor storing about 1,500 times the energy of a comparably sized capacitor, said Schindall.
但是超级电容也遇到一些挑战。典型的20微法的电容可以接受最高300伏的电压，而超级电容只可接受2.7伏的电压。如果电压升高，电解液就开始分解。所以实际上，我们谈论的超级电容可以存储的电量约为大小类似的普通电容存储量的1500倍。

Despite offering a huge leap over regular capacitors, ultracaps still lag behind batteries when it comes to energy storage capacity. Ultracapacitors (which are also more expensive per energy unit than batteries), can store only about 5 percent of the energy of comparable lithium-ion batteries. And that, said Schindall, is a “fatal flaw” for many applications.
和普通电容比较，超级电容向前迈了一大步，但超级电容在储能能力发面仍落后于电池。超级电容（单位能量比电池贵）只可以存储类似锂离子电池5%的电量。Schindall还介绍说这一特点对许多应用来说是致命的缺点。

It would be technically possible, for example, to use ultracaps instead of lithium-ion batteries in cell phones, with some serious benefits: You would never have to replace the ultracapacitor, said Schindall, and the phone would recharge very quickly. But the phone wouldn’t stay charged for very long at all with today’s ultracapacitors—perhaps as little as 90 minutes, or five hours max, Schindall said.
举例来说，在手机中使用超级电容替代锂离子电池在技术上是可能，也会带来显著的好处。Schindall介绍说，你将不需要更换手机里的超级电容，手机充电会非常快。但在当今的超级电容技术条件下，手机带电时间不会很长，短的时候90分钟，长的时候5个小时。

Think of it this way: The ultracapacitor is like a small bucket with a big spout. Water can flow in or out very fast, but there’s not very much of it. The battery is like a big bucket with a tiny spout. It can hold much more water, but it takes a long time to fill and drain it. The small bucket can provide a brief “power surge” (“lots of water” in this analogy), and then refill gradually from the big bucket, Schindall explained.
让我们这样来想象一下，超级电容就像一个大嘴的小桶，水可以很快的流进流出，但是里面水不多。电池就像一个小嘴的大桶，它能够装进多得多的水，但是流进流出需要很长时间。小桶可以提供短时间的电涌（可以比作很多水），然后逐渐用大桶再将其装满，Schindall解释说。

http://article.yeeyan.org/view/258571/235792