关税下降，美国或囤货锂电池！亿纬锂能涨超3%，宁德时代涨逾1%

Group 1 - The A-share market indices have turned positive, with the Double Innovation Leader ETF (588330) rising by 0.36%, and the underlying index has increased by 11.69% since its low on April 8 [1][3] - In the component stocks, lithium battery companies such as Yiwei Lithium Energy rose over 3%, and CATL increased by more than 1% [1] - The CPO concept stocks, including Xinyi Technology and Zhongji Xuchuang, both rose over 2% [1] Group 2 - The U.S. has significantly reduced tariffs on Chinese goods, which is expected to restore exports of lithium batteries from China to the U.S. [3] - In the past five years, the U.S. has been the largest export market for Chinese lithium batteries, with exports reaching a record high of $15.315 billion last year, accounting for 25% of total lithium battery exports from China [3] - In Q1 of this year, the value of lithium battery exports to the U.S. was $3.132 billion, a year-on-year increase of 7.7%, representing 20.2% of total exports [3] Group 3 - The Double Innovation Leader ETF (588330) closely tracks the Science and Technology Innovation 50 Index, selecting 50 large-cap companies from the Sci-Tech and ChiNext boards, covering popular sectors such as new energy, semiconductors, and medical devices [4] - The ETF provides a low-threshold entry point for investors to access multi-layered capital markets, and the index has the potential to act as a "rebound pioneer" with a 20% price fluctuation limit [4]