Lithium prices are rising at their fastest pace in years due to rising demand for rechargeable batteries and supply disruptions. Due to high-density energy storage, the metal is used in rechargeable batteries for electric cars, smartphones, laptops, and other electronic devices. Plus, the high cost of converting the metal into industrial use has boosted prices by 240% in 2021, according to research firm and price provider Benchmark Mineral Intelligence, as quoted on street.com.As a result, Global X Lithium & Battery Tech ETF LIT, which tracks the performance of the largest and most-liquid listed companies that are active in the exploration and mining of Lithium or the production of Lithium batteries, gained more than 40% last year (read: Industrial Metal ETFs Win in 2021: What Next in 2022?).2022 is Upbeat Too for LithiumFurther rise in lithium prices is likely as supplies for industrial use are incapable of meeting higher EV demand. The lithium-ion batteries are used for electric vehicles and energy-storage systems, and demand is high as the world is trying to transition from fossil fuels.Simon Moores, CEO of Benchmark Mineral Intelligence, told Emerging Tech Brew that the EV industry is already facing a shortage of battery-grade lithium, and that price volatility will be a “three-year thing,” as quoted on a morningbrew article.Anglo-Australian miner Rio Tinto Plc's lithium project, which Serbian authorities canceled licenses for last week, is likely to extend the supply crunch until the middle of the decade, according to industry experts. With hard rock mines, Australia is the world's leading supplier. Argentina, Chile and China produce it mostly from salt lakes.Chinese battery-grade lithium carbonate prices continued to record solid gains due to tremendous spot supply crunch, as consumers are continuing to boost their inventories ahead of the Jan 31-Feb 6 Chinese New Year holiday, per an article published on metalbulletin.com.While this indicates a short-term surge in lithium prices, a long-term price rally is also in the cards as the leading producer Allkem said on Jan 18 that it expects pricing in the first half to increase to around $20,000 a ton at the point of loading, up about 80% from the half-year to December 2021.ETFs In Focus Against this backdrop, one can bet on lithium ETFs with a medium-term view.Global X Lithium & Battery Tech ETF LIT The underlying Solactive Global Lithium Index tracks the performance of the largest and most-liquid listed companies that are active in the exploration and mining of Lithium, or the production of Lithium batteries. LIT charges 75 bps in fees.The Amplify Lithium & Battery Technology ETF BATTThe EQM Lithium & Battery Technology Index seeks to provide exposure to global companies deriving material revenues associated with the development, production and use of lithium battery technology. BATT charges 59 bps in fees and yields 2.46% annually. Infrastructure Stock Boom to Sweep America A massive push to rebuild the crumbling U.S. infrastructure will soon be underway. It’s bipartisan, urgent, and inevitable. Trillions will be spent. Fortunes will be made. The only question is “Will you get into the right stocks early when their growth potential is greatest?” Zacks has released a Special Report to help you do just that, and today it’s free. Discover 7 special companies that look to gain the most from construction and repair to roads, bridges, and buildings, plus cargo hauling and energy transformation on an almost unimaginable scale.Download FREE: How to Profit from Trillions on Spending for Infrastructure >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Global X Lithium & Battery Tech ETF (LIT): ETF Research Reports Amplify Lithium & Battery Technology ETF (BATT): ETF Research Reports To read this article on Zacks.com click here. Zacks Investment Research