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	<title>绿色播报IF Green &#187; Sunrgi</title>
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		<title>高效聚光的Sunrgi太阳能电池</title>
		<link>http://www.if-g.com/eco/20080515/478.html</link>
		<comments>http://www.if-g.com/eco/20080515/478.html#comments</comments>
		<pubDate>Wed, 14 May 2008 21:46:30 +0000</pubDate>
		<dc:creator>lemur</dc:creator>
				<category><![CDATA[再生能源]]></category>
		<category><![CDATA[科技]]></category>
		<category><![CDATA[Spectrolab]]></category>
		<category><![CDATA[Sunrgi]]></category>
		<category><![CDATA[太阳能]]></category>
		<category><![CDATA[跟踪聚光太阳能电池]]></category>

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		<description><![CDATA[
美国的一家风投企业Sunrgi宣布，该公司开发了一种高效的太阳能电池，模块转换效率高达37.5%。这是一款跟踪聚光式太阳能电池，该电池模块是在美国波音的子公司——美国Spectrolab开发的人工... <p><script type="text/javascript"><!--
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			<content:encoded><![CDATA[<p><img src="http://www.if-g.com/green/uploads/2008/05/sunrgi_solar_system_model.jpg" alt="" title="sunrgi solar system model" width="480" height="346" class="alignnone size-full wp-image-481" /></p>
<p>美国的一家风投企业Sunrgi宣布，该公司开发了一种高效的太阳能电池，模块转换效率高达37.5%。这是一款跟踪聚光式太阳能电池，该电池模块是在美国波音的子公司——美国Spectrolab开发的人工卫星用太阳能电池单元上，组装了聚光倍率1600倍的透镜构成的。该太阳能电池所用材料，来自于大型透镜和卫星用途的航天级GaAs化合物类物质。</p>
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<p><span id="more-478"></span></p>
<p><img src="http://www.if-g.com/green/uploads/2008/05/sunrgi_1kwh_solar_cell_array.jpg" alt="" title="sunrgi 1kwh solar cell array" width="480" height="300" class="alignnone size-full wp-image-480" /></p>
<p><img src="http://www.if-g.com/green/uploads/2008/05/sungri_module_shadow.jpg" alt="" title="sungri module shadow" width="480" height="360" class="alignnone size-full wp-image-479" /></p>
<p>跟踪聚光型太阳能电池的单元虽然转换效率高，但与相同尺寸的结晶硅太阳能电池单元相比，成本也高达前者的100倍以上。因此，Sunrgi采用了通过透镜将照射到数十厘米见方面积的太阳光聚集到数毫米见方狭小区域内的设计，这样一来，只使用小型太阳能电池单元即可。例如，使用聚光倍率为1000倍的透镜时，单位模块的太阳能电池单元的成本可降至结晶硅类电池单元的1/10左右。</p>
<p>不过，太阳能电池单元在位于透镜焦点附近时才能发挥功能，因此，为使模块总是朝向太阳的方位，必须使用太阳跟踪系统。这一设计虽然转换效率较高，但却存在透镜，聚光发热释放槽以及跟踪装置的重量及体积较大等问题。<br />
另外，这款电池由于聚光倍率较高，不散热时电池单元的温度最高可达到约1650℃，通过采用Sungri自主开发的散热技术“COOLMOVE”，解决了发热问题。该公司表示，将来“能够以5美分/kWh的成本发电”，量产“计划在12～15个月后开始”。</p>
<p>[来源：<a  href="http://china.nikkeibp.co.jp/china/news/elec/elec200805130119.html">日经BP社</a>  <a  href="http://www.sunrgi.com/">Sunrgi</a>]</p>
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