Researchers demonstrate selective recovery of lithium from spent lithium iron phosphate batteries

A team from the Beijing University of Chemical Technology has used a formic acid-hydrogen peroxide system for selective leaching of lithium ions from spent lithium iron phosphate batteries. A paper on their process was published in the Journal of Power Sources.

The team achieved optimal leaching conditions by single-factor optimization: formic acid concentration of 0.8 mol/L, solid–liquid ratio of 50 g/L, initial hydrogen peroxide volume fraction of 8%, temperature of 60° C, and a reaction time of 1 hour. Under these conditions, the extent of lithium leaching reaches 99.9%, while iron leaching is only 0.05%. 

The optimal leaching conditions were verified by multi-factor response surface experiments and the results obtained by the two methods were similar. The primary precipitation extent and purity of the lithium product achieved 85.05% and 99.9%, respectively, using sodium carbonate precipitation to recover lithium ions from the leach filtrate.

In this study, formic acid, an organic acid that is less acidic, green, easily decomposed and less polluting than inorganic acids, was used as the leaching agent and hydrogen peroxide was used as the oxidizing agent. The proposed recovery technology has the advantages of simple, short process, good performance, high lithium concentration in leaching solution with almost no iron ion and high purity of lithium carbonate,” the authors wrote.

Source: Green Car Congress

Source: Electric Vehicles Magazine

Volvo’s new 8900 Electric bus is aimed at transit, intercity and commuter applications

Volvo Buses has debuted the Volvo 8900 Electric, a low-entry bus designed for city, intercity and commuter operations that builds on the success of the Volvo 8900, its diesel-fueled predecessor. 

Using the new Volvo BZR Electric chassis, the Volvo 8900 Electric shares major components and subsystems with other models built on the Volvo Group’s common e-mobility architecture.

The modular battery arrangement of up to 540 kWh in combination with driveline options of one or two motors providing traction power of up to 400 kW, or 540 hp, makes the Volvo 8900 Electric suitable for most extended city or intercity applications. The model comes in two- and three-axle configurations with a maximum passenger capacity of 110, and is slated to be available in selected European markets in 2025.

“It’s logical to include electrified solutions for intercity, transit and commuter operations,” said Thomas Nylund, Head of Volvo Buses Europe. “The 8900 Electric is a dedicated European offer and another major step in our efforts to provide efficient and sustainable people transport solutions.”

Source: Volvo Buses

Source: Electric Vehicles Magazine

Safer EV systems through advanced power distribution and protection 

Electric vehicles (EVs) are becoming more popular and affordable as the demand for clean and sustainable mobility grows. However, EVs have increasingly higher power levels that can have unsafe overcurrent situations. To address these challenges, EVs need reliable and efficient power distribution and protection solutions that can ensure safety, performance, and durability of the vehicles and the charging infrastructure. Eaton, a global leader in power management, offers a range of solutions for EV power distribution and protection, from components to systems, that can meet the diverse needs of EV manufacturers, operators, and users.

Eaton’s components for EV power distribution and protection include fuses, Breaktor® circuit protection technology, busbars, and connectors. These components are designed to handle high currents and voltages, withstand harsh environments, and provide fast and accurate protection against short circuits, overloads, and overtemperature. The exclusive Breaktor technology combines the functions of a fuse and a contactor in one device. It can interrupt high currents and voltages in milliseconds, isolate faults, and enable fast and safe reconnection. It also reduces the size, weight, and complexity of the EV power distribution system, saving space and improving competitiveness. With a broad variety of components are compatible with various EV architectures, such as AC or DC, single-phase or three-phase, and low-voltage or high-voltage, Eaton is able to design solutions for customized vehicle system applications.

Eaton’s systems for EV power distribution and protection include power distribution units (PDUs) and battery disconnect units (BDUs). These systems integrate Eaton’s components, like Breaktor, to provide comprehensive and customized solutions for EV system power management with advanced circuit protection. Eaton’s PDUs and BDUs distribute the power of the EV battery, as well as protect it from overcharging, undercharging, and thermal runaway. The BDU is also specially designed to isolate the battery from the power distribution system in case of a fault or an emergency and reconnect it when needed. Both PDUs and BDUs can be customized to fit various EV architectures and applications.

Eaton’s power distribution and protection solutions for EVs can help EV manufacturers, operators, and users achieve their goals of reducing emissions, improving efficiency, and enhancing safety. Eaton has a proven track record of delivering innovative and reliable solutions for EV power management and is committed to advancing the safety of electrification of transportation to create a better future.

Learn more about Eaton’s EV power distribution and protection solutions

Download Eaton’s 2024 eMobility guide

Source: Electric Vehicles Magazine

NovaCHARGE adds cloud-based EV charger power management

NovaCHARGE has expanded its cloud power management capabilities by introducing Virtual Circuit Technology (VCT) to distribute the load from EV chargers.

VCT provides multi-level power management for utilities, fleets, multi-dwelling units, and any other location with limited available power to control the use of open standard OCPP-compliant chargers using ChargeUP, its charging platform management system.

The technology provides the ability to automatically manage how EV chargers use the power available across different locations throughout the day, allowing more vehicles to charge in places with limited power. It aims to ensure that power demand from the chargers will not exceed the infrastructure’s limitations so that the infrastructure is not overloaded, but power is balanced across the grid as vehicles enter and leave the charging site.

VCT can manage power across multiple configurations, including where EVs are using a local bank of chargers connected to one panel; where vehicles are connected across multiple panels in a building; where vehicles are connected across a campus with a common utility transformer; and where EVs are connected across utility substation feeders.

“With VCT, we are ensuring that more vehicles may charge, and that no EV driver is left stranded due to a lack of infrastructure access. We continue to partner with large utilities, like OUC, on EV charging innovation and are focused on executing our trial of VCT this summer,” said Oscar Rodriguez, CEO of NovaCHARGE.

Source: NovaCHARGE

Source: Electric Vehicles Magazine

Under US pressure, Mexico refuses to offer incentives for Chinese EV makers

After decades of trumpeting “free trade,” and watching industry after industry decamp to China, the US government has apparently decided to draw a red line in front of the auto industry, and protectionism is back in style.

US automakers are currently protected from Chinese competition by a 27.5% tariff. But will that be enough to protect the companies from their own shortsightedness? Since the 2008 advent of the Tesla Roadster (or since the 1996 debut of GM’s EV1?), it has been plain that electrification is the future of the auto industry. But US automakers (and pretty much all legacy firms outside of China) have spent that time dithering, delaying, obfuscating, misinforming the public and lobbying policymakers, in order to slow the transition.

The Biden Administration has done much to try to jump-start the moribund US EV industry, but its efforts may be too little, too late. Chinese automakers are exporting quality EVs to Europe and elsewhere, at prices no Western automaker can hope to match. They’re also building auto plants in Mexico, and many believe that they hope to eventually export vehicles from these plants to the US. (About 20 Chinese automakers sell cars in Mexico, but none currently produce them in the country.)

Now the US government is reportedly pressuring Mexico not to smooth the Chinese automakers’ path by offering incentives such as low-cost public land or tax breaks.

The last meeting between top Mexican officials and a Chinese automaker was in January, “three Mexican officials familiar with the matter” told Reuters. At the meeting with execs from behemoth BYD, Mexican authorities made it clear that they would not offer incentives like those awarded to automakers in the past, and that future meetings with Chinese automakers would be put on hold.

According to the sources, the Mexicans snubbed the Chinese in response to pressure from the Office of the United States Trade Representative (USTR) to keep Chinese automakers out of the free trade zone established under the North American Free Trade Agreement.

A USTR official told Reuters that the United States-Mexico-Canada Agreement (USMCA) was not meant to “provide a back door to China and others who may be seeking to access our market without paying… tariffs.” US Trade Representative Katherine Tai said that the US must take decisive action to protect EVs from subsidized Chinese competition.

Chinese automakers could theoretically get around US tariffs by producing vehicles in Mexico. To avoid the tariffs, goods must have a certain percentage of regional assembly and components. For vehicles, the rules require that 75% of core vehicle parts must originate in the North American region.

BYD recently denied plans to sell passenger EVs in the US (the company has been producing electric buses in California for years). The company says its planned Mexico facilities would serve the local market only.

One of Reuters’s sources said that BYD is now seeking incentives from Mexican state governments. Durango, Jalisco, Mexico State and Nuevo Leon have offered incentives to Chinese automakers. Last December, Nuevo Leon approved $153 million in incentives for a Tesla plant.

Source: Reuters

Source: Electric Vehicles Magazine

Green Watt Power adds 8 new models to its Diamond Series of 1 kW EV chargers

Green Watt Power, a division of Powerland Technology, has added 8 new models to its Diamond Series of ruggedized, fully potted AC chargers, which are designed to serve low-voltage EV applications, including material handling, motorcycles, scooters, forklifts, golf carts and RVs.

The EVC1000 Diamond Series supports charging of 72 V and 48 V Li-ion batteries at power levels of 750 W to 1,800 W. This 1 kW charger can handle inputs from 90-264 VAC, with a frequency range of 47 to 63 Hz. It includes a typical Power Factor Correction (PFC) of 0.98.

The charger can be controlled via CAN communication. It features colored LED status indicators. The set of self-protection features includes OVP, OCP, SCP, OTP, RPP and UVLO. The turn-on delay at full load is 5 seconds maximum.

The EVC1000 is designed to meet UL/CSA62368 and EN60335 safety standards. The case temperature range is -40 to 80° C (60° C with handle) and the storage range is -40 to 85° C.

The Diamond Series comes in On-Board and Off-Board versions, with or without a handle, and in connector or flying lead versions. Each unit includes a fan that turns on at high temperatures.

Green Watt Power can modify the unit as needed to meet customer requirements.

Source: Green Watt Power

Source: Electric Vehicles Magazine

How To See All of Guadalupe Mountains National Park In Your EV

Growing up around El Paso and southern New Mexico, Guadalupe Mountains National Park has long been a place to go. As a kid, I spent a lot of Saturdays getting up early in the morning to go visit Pratt Cabin in McKittrick Canyon, and even got to go inside a … [continued]

The post How To See All of Guadalupe Mountains National Park In Your EV appeared first on CleanTechnica.

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The Rad Power Bikes Radster Trail — CleanTechnica Tested

Rad Power Bikes was the first brand to truly move into the electric bike space with a full range of models and has been a dominant brand ever since. A few weeks ago, the brand announced a renewed focus on safety with a new Safe Shield battery as the firm … [continued]

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Syrah begins production of active anode material in Louisiana

Syrah Resources, an industrial minerals and technology company, has become an integrated natural graphite active anode material (AAM) supplier outside China, processing natural graphite from Syrah’s Balama Graphite Operation in Mozambique.

The 11,250-ton-per-year AAM Vidalia operation in Louisiana is supported by high EV-driven demand internationally, the need for independent natural graphite AAM critical mineral supply, and industry concerns about the emissions intensity of production and provenance of supply. China’s recent export limits on natural and synthetic graphite and its products and US guidance on the definition of foreign businesses of concern that affect eligibility for the Section 30D tax credit for new EVs highlight the importance of building a supply chain in North America, the company said.

“Commencing production at Vidalia is a huge step forward in Syrah’s evolution, with the downstream integration being the culmination of almost seven years of technology development, feasibility, procurement, engineering, construction and commissioning work undertaken by the Syrah team and its service providers,” said Shaun Verner, Syrah’s CEO.

Source: Syrah Resources

Source: Electric Vehicles Magazine

Autocar and Rocsys partner to bring hands-free charging to electric truck fleets

US severe-duty truck maker Autocar is collaborating with automated EV charging company Rocsys, headquartered in the Netherlands, to provide hands-free charging capabilities to Autocar’s electric terminal tractors at logistics facilities, including distribution centers and inland ports.

Rocsys says its hands-free charging system will undergo final development through a pilot order secured from an Autocar customer. It uses soft robotics, computer vision technology and AI to streamline the charging process while also minimizing wear and tear on charging cables and connectors. The system is compatible with any high-power DC charging station using a CCS-1 charging connector. The pilot will capture and use hundreds of images to work toward a 99% plug-in success rate.

“Hands-free charging is a pivotal advancement in the electrification of commercial vehicle fleets,” said Autocar Chairman Andrew Taitz. “By eliminating the need for manual intervention, hands-free charging ensures uninterrupted and efficient charging operations round the clock, enhancing fleet productivity and sustainability.”

Source: Autocar

Source: Electric Vehicles Magazine