Compared to widely used lithium-ion batteries, which utilize liquid electrolytes, all-solid-state batteries support greater energy density, which opens the door for larger capacities, and utilize solid electrolytes, which are demonstrably safer. However, the lithium metal anodes that are frequently used in all-solid-state batteries, are prone to trigger the growth of dendrites1 which can produce undesirable side effects that reduce a battery’s lifespan and safety.
To overcome those effects, Samsung’s researchers proposed utilizing, for the first time, a silver-carbon (Ag-C) composite layer as the anode. The team found that incorporating an Ag-C layer into a prototype pouch cell enabled the battery to support a larger capacity, a longer cycle life, and enhanced its overall safety. Measuring just 5µm (micrometers) thick, the ultrathin Ag-C nanocomposite layer allowed the team to reduce anode thickness and increase energy density up to 900Wh/L. It also enabled them to make their prototype approximately 50 percent smaller by volume than a conventional lithium-ion battery.
This promising research is expected to help drive the expansion of electric vehicles (EVs). The prototype pouch cell that the team developed would enable an EV to travel up to 800km on a single charge, and features a cycle life of over 1,000 charges.
As Dongmin Im, Master at SAIT’s Next Generation Battery Lab and the leader of the project explained, “The product of this study could be a seed technology for safer, high-performance batteries of the future. Going forward, we will continue to develop and refine all-solid-state battery materials and manufacturing technologies to help take EV battery innovation to the next level.”
A profitable first quarter, optimism about Model Y, and a 400-mile Model S were among Tesla’s non-rant-related takeaways from its official Q1 update. The CHAdeMO standard for fast charging looks like it has a future after all. And Bollinger shows the specific foundation for some tough work trucks. This and more, here at Green Car Reports... 
Electric cars still lack a unified standard for DC fast charging, but the latest version of the CHAdeMO charging standard comes closer to achieving that goal. CHAdeMO 3.0 is being co-developed with the China Electricity Council, and will operate under China's GB/T communications standard, the CHAdeMO Association said last week in a press release... 
Although there are plenty of electric trucks in the works, Detroit-based Bollinger Motors is one of the few all-electric efforts aiming to produce what many serious work-truck users need as a foundation: the B2 Chassis Cab. Heavy-duty pickups are commonly offered in tough chassis-cab formats that let companies and specialized upfitters put... 
Tesla CEO Elon Musk said in January that a 400-mile range for the Model S isn’t far away Musk wasn’t exaggerating. Today he revealed that the company’s flagship electric sedan passed the 400-mile mark about two months ago. In Tesla’s quarterly update call Tuesday—before the call devolved into a series of rants from... 
Despite the shutdowns of factories in China and the U.S. related to the coronavirus pandemic, Tesla claimed a profitable first quarter on Wednesday. Tesla’s net income for Q1 was small—just $16 million. Revenue for the quarter came in at $5.99 billion—higher than the $5.8 billion and slight loss that had been expected, but still... 
The Rivian-built Lincoln electric SUV project has been canceled—or at least revamped. The Polestar 2 will offer some safety firsts. And we bring you a first drive of the 2020 Hyundai Sonata Hybrid. This and more, here at Green Car Reports. The Lincoln electric SUV that was to be co-developed and built by Rivian in Illinois has been canceled... 
The 2020 Hyundai Sonata Hybrid is one of the highest-mileage family-size sedans ever, and it’s arriving soon—at a time of sustained record-low gas prices and a global oil glut. Keeping that unfortunate timing in mind only underscored that there’s so much more to this model’s appeal. Over four days spent with the Sonata... 
A Lincoln electric SUV based on Rivian's "skateboard" chassis, and intended to be built at the startup's Illinois factory, has been cancelled due to the ongoing coronavirus pandemic. The news was first reported by Automotive News, and subsequently confirmed by Lincoln and Rivian to Green Car Reports. Stay-at-home orders and an imploding economy... 
Volvo built its reputation on safety, and that same focus seems to have translated to the Swedish automaker's Polestar division. The upcoming Polestar 2 electric car will debut a new generation of safety systems, according to a press release from the automaker. The Polestar 2 was developed with Volvo engineers and R&D resources, and will hold...