The Amplify Lithium & Battery Technology ETF is the second pure-play lithium battery ETF available in the U.S. At just 0.59% per year, its expense ratiois lower than Global X's offering. The fund is made up of 90 stocks, so it also covers more ground. But more stocks and lower expenses have not equated to better investor returns. Since the Amplify. The iShares Global Clean Energy ETF isn't solely focused on lithium production and batteries. Rather, this ETF has a wider scope, with investments in clean energy companies that include lithium and battery technology. The iShares fund includes some of the names found in the GlobalX and Amplify ETFs, too. But the ETF predominantly invests in adjacen. The First Trust Nasdaq Clean Edge Green Energy Index Fund is another broad-based ETF that covers all things renewable energy. The fund has amassed a sizable following, with $641 million in assets under management, and it charges a 0.59% annual fee. First Trust's offering is composed of 56 stocks and has some overlap with its iShares counterpart. Ho. The final option on this list comes from famous growth investor Cathie Wood's company Ark Invest. One of its funds, Ark Autonomous Technology & Robotics ETF, lists “energy storage” as a top segment it invests in. Of course, this is far from a pure play on lithium and batteries since other areas, such as 3D printingand autonomous transportation, als.