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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 晴一天: 金币+25, 翻译EPI+1, ★有帮助 2012-03-24 11:53:36 晴一天: 金币+25, ★有帮助 2012-03-26 12:50:07
The energy has been tensing increasingly with the heavy pollution. Energy safety and protection has been attracted more attention universally. In such context, making the clean and unpolluted transportation tools have been main trend in the scientific developing. Meanwhile, China government attach great importance to E-vehicle industry developing, rank it to be national major science and technology project .E-vehicle pose a promising marketing potential basing on analyses of the national fundamentality and people's consumption standard.
Battery is the motive of E-vehicle. It plays a key role in E-vehicle performance and developing. The ways to select a long life and stable battery has been a major factor which influences E-vehicle industry developing. For its rich resource, economy, accomplishment, reliability, high recycling, the lead-acid battery has been studied and used generally recently. However, there are some disadvantages in lead-acid battery using. It may not live up to the consumer’s satisfaction. In order to improving battery performance, gelled electrolyte has been used to make battery. It can be seen in our research. |
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