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Mazda working on lithium-ion batteries to replace lead-acid starter batteries

In the quest for ever better fuel economy, car companies are looking for every single advantage possible, no matter how small. This is evident in everything from active grille shutters to the 48-volt mild-hybrid electric assist systems like that in the new Ram 1500. For Mazda, the latest target for potential efficiency gains is the lowly 12-volt starter battery. The company announced that it is partnering with two other companies, ELIIY Power and Ube Industries, to develop a lithium-ion starter battery that would be used on mainstream models in place of conventional lead-acid units. Mazda plans to have them ready for use by 2021. The advantage here would be that 12-volt lithium-ion batteries would be much smaller and lighter than the lead-acid ones they replace. And lighter cars don't need as much fuel to move around. Plus, as an added benefit, making cars lighter also often makes them faster and better handling. This is why companies such as Lotus and Porsche have offered optional lithium-ion 12-volt batteries for some lightweight sports cars. A potential downside to the use of these batteries is increased cost. Lead-acid batteries from your local parts store will run you between $100 to $150. AGM batteries could be between $200 and $300. As for lithium-ion batteries, Lotus introduced the option on the Evora 400 in 2016, and the option cost $1,690. Odds are that a company such as Mazda won't be absorbing all those costs, meaning that the cost of these future Mazdas could increase with a change from lead-acid to lithium ion. Related Video:

Editors' Picks February 2021 | Ford F-150, Genesis GV80, Mazda CX-30 and more

If we’ve driven and reviewed it, thereÂ’s an Autoblog Rating for it. ItÂ’s been over two years since we launched a new rating system to help you evaluate cars at a glance. We tweaked and improved it along the way and quickly arrived at a consistent process for giving each and every car on sale today a fair score. Cars that are exemplary or stand out in their respective segments get EditorsÂ’ Pick status. Those are the ones weÂ’d recommend to our friends, family and anybody whoÂ’s curious and asks the question. Every car we rate gets a score from 1 to 10, making it easy for you to tell if itÂ’s a car worth pursuing and possibly purchasing. YouÂ’ll find the scores of previously-rated cars attached toward the top of our written reviews. For example, the Bronco SportÂ’s rating can be found here. The Acura TLXÂ’s rating is in this post, and the Nissan RogueÂ’s rating is right here. There are hundreds of examples to be found. The above examples make up the most natural ways to find the Autoblog rating when researching for your next car, but starting today, weÂ’re going to begin calling out each new set of Editors' Picks per month in their own breakout stories. This will put the newest and most recently refreshed cars on sale on a pedestal for you to see which ones are worth your while. WeÂ’ll typically rate anywhere between 5-10 new cars per month, so you can count on just a select few from those to make this list. Expect to see this recurring ratings post each month going forward, and read on for FebruaryÂ’s EditorsÂ’ Picks.   2021 Genesis GV80 2021 Genesis GV80 View 18 Photos Quick take: The stylish GV80 offers useful safety features, compelling design and sporty dynamics to push it near the top of the segment. Genesis takes risks with this aggressive crossover, and the result is a luxurious vehicle that is rewarding to drive. Score: 8.5 What it competes with: Lincoln Aviator, Volvo XC90, BMW X5, Mercedes-Benz GLE-Class, Acura MDX, Lexus RX Pros: Beautiful design, good road manners, awesome value Cons: Small third row and cargo space, less comfortable standard suspension  From the editors: Editor-in-Chief Greg Migliore — “The GV80 is a hugely important vehicle for Genesis. It makes a style statement, has an elegant interior and is a compelling all-round execution. It looks like a Bentley, and I give Genesis props for taking some risks with the GV80 and largely pulling it all off.

How Mazda got Skyactiv-X to work is incredible

"Take everything you know about engines and turn it around," Mazda North America Vehicle Development Engineer Dave Coleman says, patiently and with a look of benevolent pity, as he's quizzed about the particulars of the company's new engine. The Skyactiv-X engine is enigmatic — and deceptively simple in operation. And the bottom line for American consumers is that they'll be able to buy a car (or crossover; we don't know yet what vehicle will first get it) by late 2019 that provides diesel-like fuel economy but runs on regular old gasoline. In between diesel and spark ignition, but it's neither To truly understand it, you have to dive into the contradictions. Take that regular old gasoline: Contrary to common sense, the lower the octane, the better it works. In the lab, the Skyactiv-X engine loves 80 octane. The lowest Americans get is 87, so the engine is tuned for that octane. Go higher and you lose some low-end torque. Coleman was right. It's hard to wrap your head around an engine that thrives just at the point when most gas engines would aggressively self-destruct. It uses a supercharger to pump additional air — but not additional fuel. It uses spark plugs to start a combustion cycle that normally doesn't need a spark. And, quixotically, it's not displacing Mazda's own American-market diesel engine, currently languishing in a seemingly endless hell of regulatory approval. More bizarre: Mazda is a tiny automaker facing real existential headwinds, and gasoline compression ignition is a massive challenge. GM and Hyundai announced compression ignition, or HCCI, projects (full name, homogeneous charge compression ignition) to great fanfare, but they never amounted to a production hill of beans, crippled by reliability issues or horrible vibrations. Worse, they only worked at an unusably narrow range — low RPMs and low loads. HCCI research improved direct-injection gas and diesel engine technologies for these companies, but HCCI itself remains untamed. The benefits of lean combustion Why even try to tame HCCI? The answer is much better fuel economy and lower emissions. Less burned carbon-based fuel, less carbon dioxide released. That's simple. But there are some thermodynamic reasons for the lean combustion you can achieve with compression ignition that are worth explaining. The ideal amount of fuel for a conventional engine to burn is about a 14:1 air-to-fuel ratio. That lets every molecule burn nicely, in theory.