Study identifies main culprit behind lithium metal battery failure; counters conventional wisdom

Green Car Congress

The discovery, published in Nature , challenges the conventional belief that lithium metal batteries fail because of the growth of the solid electrolyte interphase (SEI) between the lithium anode and the electrolyte. Our ultimate goal is to enable a commercially viable lithium metal battery.

2019 134

Study finds crystallinity reduces resistance in all-solid-state batteries

Green Car Congress

Reducing electrical resistance at the interface of a solid- electrolyte and electrode (solid-electrolyte/electrode) is crucial for the development of fast charge/discharge solid-state Li batteries. We stress here that the Li-ion pathway is defined in this thin-film battery.

2019 110

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Electric-Car Battery Costs Already Cheaper Than 2020 Predictions: Study

Green Car Reports

Green Batteries Manufacturing Study battery pack costs lithium-ion plug-in cars solid-state cell It''s widely assumed that electric cars will never emerge into the mass market if buying them requires paying a significant premium over comparable internal-combustion models. While owners may save money on fuel and maintenance over the long term, a higher initial purchase price remains intimidating, and take time to amortize. And by far the most.

2015 87

Battery-electric cars cheaper, better at cutting emissions than fuel cells: Stanford study

Green Car Reports

There's been considerable debate among advocates of battery-electric and hydrogen fuel-cell cars over which technology is better for the environment. A new study indicates. emissions hydrogen Study plug-in cars hydrogen fuel cellWhile neither vehicle type produces any tailpipe emissions, their overall emissions vary depending on the fuels and processes used to generate electricity or produce hydrogen.

2016 87

Study links carbon fiber microstructure to Li insertion mechanism in structural batteries

Green Car Congress

Carbon fibers have already beeen demonstrated as high-capacity Li-ion battery anodes, opening the way for their use as structural electrodes—i.e., The researchers studied the microstructure of different types of commercially available carbon fibers.

CMU study suggests difficulties in reaching targeted low price points for Li-ion batteries

Green Car Congress

However, none of these changes are sufficient to reach the DOE energy storage target of $125 kWh by 2020 , the study found. Historical prices and future cost predictions for lithium-ion batteries. Batteries Manufacturing

2016 168

Study sees gradual, focused replacement of lead-acid SLI batteries by Li-ion batteries over next couple of years

Green Car Congress

A study by a team of researchers from Germany and South Africa forsees the gradual replacement of lead-acid SLI (starter, lighting and ignition) batteries with Li-ion batteries over the next couple of years. In the paper, the team reviewed a range of factors specific to the use of Li-ion as an SLI battery in light of some of the technology challenges and market opportunities. Batteries

2019 86

Bizarre Swedish study claims electric cars are worse for the environment

Green Car Reports

The benefits of electric vehicles over those with internal-combustion engines are vast, but a strange new study is making rounds that claims electric cars are worse for climate-change emissions. The study. Carbon Footprint Study plug-in cars Battery Electric Vehicle (BEV Electric vehicles shouldn't be considered all-out carbon footprint saviors, but they can legitimately be viewed as the great minimizers.

2017 82

Study suggests lithium and cobalt for batteries may face supply risks by 2050

Green Car Congress

Lithium and cobalt are fundamental components of present lithium-ion batteries. The researchers present these results in the journal Nature Reviews Materials as part of a cost and resource analysis of sodium-ion batteries. … in: “Behaviour of Lithium-ion Batteries in Electric Vehicles.“

2018 121

Toyota and Panasonic to start feasibility study on forming joint automotive prismatic battery business; studying solid-state batteries also

Green Car Congress

Toyota Motor Corporation and Panasonic Corporation (Panasonic) have agreed to begin studying the feasibility of creating a joint business focused specifically on high-capacity prismatic batteries for automotive applications. In order to realize these objectives, Toyota and Panasonic will target further advancements in automotive batteries—such as solid-state batteries. What types of batteries will they require? Batteries

2017 76

Study provides insight into key process in lithium-rich cathodes that both helps and hurts battery performance; oxygen oxidation

Green Car Congress

A new study led by researchers from Stanford University and the Department of Energy’s SLAC National Accelerator Laboratory and Lawrence Berkeley National Laboratory has provided insight into a phenomenon that both helps and hurts Li-ion battery performance. Today’s commercial battery materials are only able to release about half of the lithium ions they contain. This could allow for smaller phone batteries and electric vehicles that travel farther between charges.

2019 82

World to have 5,000 hydrogen fueling stations by 2032: study

Green Car Reports

It's a problem similar to that faced by battery-electric cars, but charging stations are far cheaper and easier to install—and can rely on existing grid infrastructure for their supply of electricity. Infrastructure hydrogen energy infrastructure Study hydrogen fuel cellTo achieve mass adoption, fueling infrastructure for hydrogen fuel-cell vehicles will have to be hugely expanded.

2017 70

Hawaii study finds vehicle-to-grid discharge detrimental to EV batteries

Green Car Congress

Results of a study by a team at the Hawaii Natural Energy Institute, SOEST, University of Hawaii at Manoa, suggest that the additional cycling to discharge vehicle batteries to the power grid in a vehicle-to-grid (V2G) scenario, even at constant power, is detrimental to EV battery cell performance.

2017 98

How much have electric-car battery costs fallen? This much!

Green Car Reports

High costs of lithium-ion battery cells have been one of the main hindrances to large-scale electric-car adoption, as they typically lead to higher purchase prices for electric cars than comparable internal-combustion models. But electric-car battery prices are falling fast, according to one recent study. Manufacturing Batteries Study plug-in cars

2017 70

Nissan Leaf 30-kwh battery decline 3 times that of earlier electric cars: study

Green Car Reports

One of the measures that kept its cost down was the use of passive air cooling for its battery pack, rather than the pricier liquid cooling used by other makers to keep battery temperatures within limits. Batteries lithium-ion battery pack plug-in cars Battery Electric Vehicle (BEV) Battery LifeThe Nissan Leaf, at least for the moment, remains the highest-volume electric car produced in history, with more than 300,000 sold.

2018 63

Aging Electric-Car Batteries Can Still Offer Useful Range: Report

Green Car Reports

The first wave of modern electric cars still remains fairly young, but as those vehicles rack up more miles, the performance of their gradually aging battery packs is a topic of great interest. All batteries degrade over time, losing energy-storage capacity at different rates depending on their chemistry and how they''re used. Batteries Department of Energy Study plug-in cars range anxiety battery capacity

2015 87

PNNL team pinpoints cause of dendrites and whiskers in lithium batteries; ethylene carbonate a culprit

Green Car Congress

Researchers at Pacific Northwest National Laboratory (PNNL) have uncovered a root cause of the growth of dendrites and whiskers that plague lithium batteries, sometimes causing a short circuit, failure, or even a fire. Both can pierce the separator inside a battery. Batteries

2019 101

Toyota, Panasonic agree to study prismatic battery cells for electric cars

Green Car Reports

But Toyota has yet to mass-market a battery-electric vehicle in the U.S., Batteries battery pack plug-in cars Battery Electric Vehicle (BEV) Panasonic battery capacityFor the 20 years since the introduction of the Prius, Toyota has enjoyed the first-mover advantage in hybrid cars, and leveraged those green credentials to boost public perception of its brand as a whole. as Nissan has done with the Leaf. Toyota executives have consistently.

2017 67

Study shows the significant effect of void space on ion transport in composite electrodes in solid-state batteries

Green Car Congress

Researchers from Philipps-Universität Marburg, with colleagues from Karlsruhe Institute of Technology and Toyota Motor Europe, have investigated the role of void space on ion tranport in a composite cathode for solid-state Li-ion batteries. Batteries Solid-state

2018 85

NCSU study finds shared e-scooters aren’t always as green as other transport options

Green Car Congress

A new study from North Carolina State University finds that while shared e-scooters may be greener than most cars, they can be less green than several other options, including, in some cases, buses. Electric (Battery) Emissions Lifecycle analysis Personal Transit

2019 103

Rechargeable ultrahigh-capacity tellurium-aluminum batteries

Green Car Congress

Researchers at the University of Science and Technology Beijing, with colleagues at Beijing Institute of Technology, have demonstrated the potential of rechargeable tellurium (Te) nanowire positive electrodes to construct ultrahigh-capacity rechargeable tellurium-aluminum batteries (TABs).

2019 115

Study shows a much cheaper catalyst can generate hydrogen in a commercial electrolyzer

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This study points the way toward a cheaper solution, the researchers reported in Nature Nanotechnology. Electrolysis works much like a battery in reverse: Rather than generating electricity, it uses electrical current to split water into hydrogen and oxygen. Funding for this study came from a Small Business Innovation Research (SBIR) grant from the Department of Defense.

2019 76

Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

Green Car Congress

Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). Electric (Battery) Emissions

2019 121

UCSD study: under current policies, home energy storage would often increase carbon emissions

Green Car Congress

Under current policies, home energy storage systems would also often increase carbon emissions, according to a study by a team of researchers at the University of California San Diego published in the journal Environmental Science & Technology. Batteries Behavior Market Background

2018 119

London study suggests PHEV vans a practical, accessible solution for cleaner air in European cities

Green Car Congress

These two models are the first vehicles in their classes to offer plug-in hybrid technology, and offer a standard eight-year battery warranty. Electric (Battery) Hybrids Plug-ins

2019 110

MIT team develops data-driven safety envelope for lithium-ion batteries for EVs

Green Car Congress

The safety envelope refers to the the range of mechanical loading conditions ensuring safe operation of battery cells. Their study is published in the journal Joule. Multiple Scales of the Mechanical Safety Study and the Models at Each Scale. (A–C) Batteries Safety

2019 103

Airbus, Groupe ADP, RATP Group partner to study the integration of VTOL vehicles into urban transport

Green Car Congress

Airbus, Groupe ADP and the RATP Group, along with the Paris Ile-de-France region and the French civil aviation authority (DGAC), have launched a feasibility study to demonstrate an urban system of vertical take-off and landing (VTOL) vehicles for the 2024 Olympic Games in Paris.

2019 101

MIT-led study suggests route to improving solid-state Li-ion batteries

Green Car Congress

Researchers at MIT, and their colleagues in Germany, suggest that smooth surfaces on a solid electrolyte may prevent harmful Li infiltration, thereby improving the performance of solid-state Li-ion batteries. Doing so could potentially double a lithium-ion battery’s energy capacity.

2017 78

Electric-Car Battery Costs Fell 8 Percent A Year For Market Leaders: Study

Green Car Reports

Five years into the era of modern electric cars, the biggest cost remains the battery pack. Now there''s data to confirm that not only are the costs of the battery cells falling, but that they are falling at rates pretty much in line with historical declines. A study published last month not only suggested that battery costs have already fallen. Green Manufacturing battery pack costs lithium-ion plug-in cars

2015 87

Study identifies halogen-free superhalogen electrolytes for Li-ion batteries

Green Car Congress

Most electrolytes currently used in Li-ion batteries contain halogens, which are toxic. An in-depth study based on first-principles calculations by researchers at Virginia Commonwealth University has shown that the anions of commercially available electrolytes for Li-ion batteries are all superhalogens. In the search for halogen-free electrolytes, we studied the electronic structure of the current electrolytes using first-principles theory.

2014 89

US Navy-led study of ultracapacitors finds Skeleton outperforms Ioxus, Maxwell, JM Energy for transient load applications

Green Car Congress

Among the new power architectures that hold a great deal of promise are hybrid energy storage modules that integrate energy dense batteries with power dense ultracapacitors (UCs) into a single power supply that augments traditional generation technologies. The team studied cells from the four different manufacturers under high pulsed load conditions to measure their power density into low-impedance loads. Batteries

2019 117

Hong Kong team devises new strategy for regenerating Li-ion battery electrode materials

Green Car Congress

Researchers in Hong Kong have used biodegradable organic methanesulfonic acid (MSA) to leach valuable metals from waste LiCoO 2 powders for battery material regeneration. Batteries Materials Recycling

2019 116

Rutgers study: facial and head injuries from electric scooters “a rising epidemic”

Green Car Congress

Facial and head injuries from riding electric scooters have tripled over the past decade, according to a Rutgers study. However, state helmet laws vary, and the study found that many people are being injured from not wearing appropriate protective equipment. This study highlights the importance of public awareness and policy to improve safety and primarily prevent craniofacial trauma. Electric (Battery) Health Personal Transit Regulations Safety

2019 84

Electric-car range anxiety exists, but it's overblown, says MIT study

Green Car Reports

Range anxiety, the persistent worry about not having enough battery range to finish a journey, remains one of the major obstacles to widespread electric-car adoption. Study MIT plug-in cars range anxietyMany electric cars still have shorter ranges than comparable internal-combustion models, and that continues to spook some consumers. But could those concerns be overblown? DON'T.

MIT 63

American Manganese begins testing of lithium-ion battery materials recycling pilot plant

Green Car Congress

Commencement of the pilot plant followed a HAZOP study and preliminary testing of all the unit operations in Stage 1 and Stage 2. The base metal oxide and lithium carbonate are recovered at a battery grade purity and can be used directly back into re-manufacturing new battery cathodes.

2019 130

Saft study on MgH2-TiH2 nanocomposites as active materials for all-solid-state lithium batteries

Green Car Congress

A team from France-based leading battery company Saft and Université Paris Est reports on solid-state batteries operating at 120?°C For the study, the molar content x of the MH nanocomposites ranged from 0.2 The purpose of the Saft study was to examine the electrochemical performance of the nanocomposites as a function of molar ratio x to clarify the synergetic effects between MgH 2 and TiH 2 in a solid-state cell. Batteries Solid-state

2018 60

Saft study on MgH2-TiH2 nanocomposites as active materials for all-solid-state lithium batteries

Green Car Congress

A team from France-based leading battery company Saft and Université Paris Est reports on solid-state batteries operating at 120?°C For the study, the molar content x of the MH nanocomposites ranged from 0.2 The purpose of the Saft study was to examine the electrochemical performance of the nanocomposites as a function of molar ratio x to clarify the synergetic effects between MgH 2 and TiH 2 in a solid-state cell. Batteries Solid-state

2018 60

Study finds nanoparticle NMC material used in Li-ion batteries harms key soil bacterium

Green Car Congress

Nanoparticle nickel manganese cobalt oxide (NMC), an emerging material that is being rapidly incorporated into lithium-ion battery cathodes, has been shown to impair Shewanella oneidensis , a key soil bacterium, according to new research published in the ACS journal Chemistry of Materials.

2016 78

HELLA develops battery solutions for 48V mild hybrid vehicles

Green Car Congress

With its new Dual Voltage Battery Management System and PowerPack 48 Volt products, the company is now one of the first on the market to offer innovative battery module solutions for mild-hybrid vehicles. 48V Batteries Hybrids

2019 93

European team discovers new top-performing solid-state fast ionic conductor for Li-ion batteries

Green Car Congress

Solid-state materials with high ionic conduction are necessary for many technologies, including all-solid-state lithium (Li)-ion batteries. The move to solid state batteries offers a number of advantages, including safety, but lithium ions in solids are less mobile than in liquids.

2019 115

Volkswagen introduces near-series design study of the MEB-based flexible quick charging station at Geneva

Green Car Congress

The Volkswagen Group Components brand will be showcasing the near-series design study of its flexible quick charging station at the Geneva Motor Show. By contrast, when it is permanently connected to the mains power grid, the battery pack continuously and independently recharges itself.

2019 91

ADEME / IFPEN study examines non-geological risks in the security of lithium supplies based on electrification of global car fleet

Green Car Congress

ADEME, France’s Environment and Energy Management Agency, carried out a study with IFP Energies nouvelles (IFPEN) on the dynamics of lithium supply and demand, based on different scenarios for the electrification of the global car fleet by 2050.

2018 106

Berkeley Lab/UC Berkeley study shows EV batteries meet daily travel needs of 85%+ of US drivers even after 20% energy capacity fade; calls for new EOL criteria

Green Car Congress

A new study by researchers from Lawrence Berkeley National Laboratory (Berkeley Lab) and UC Berkeley shows quantitatively that EV batteries can continue to meet daily travel needs of drivers well beyond the 80% floor for remaining energy storage capacity that is commonly assumed.

2015 118