lithium-ion battery
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A new electrolyte mixture may prevent EV batteries from catching fire
Your next EV or phone might be less likely to catch fire thanks to extra-salty batteries.
Chinese battery maker says it's ready to produce cobalt-free EV power packs at scale
A Chinese company called SVOLT claims it’s ready to start producing a cobalt-free battery at scale.
NASA astronauts complete multi-year project to upgrade batteries on the ISS
The International Space Station Program approved the development of lithium-ion batteries to replace the station’s aging power storage system back in 2011. The batteries aren’t quite like the lithium-ion we’re used to, with their space-grade lithium-ion cells and radiant barrier shield.
CPSC warning highlights fire risk of loose 18650 lithium-ion batteries
The Consumer Product Safety Commission is warning customers against purchasing loose lithium-ion battery cells that can be used for vapes, flashlights and other small devices. In particular, the CPSC has issued a warning for 18650 cells, which are slightly larger than AA batteries and are typically manufactured as part of large battery packs. CPSC says using the repacked cells could result in “fires, explosions, serious injuries and even death.”
High-density EV battery could offer 600-mile range on a single charge
Innolith AG, a Swiss startup that specializes in inorganic lithium-ion batteries, is developing a high-density battery that could provide 600 miles (1,000 km) of EV range on a single charge. The company plans to cram 1,000 Wh/kg into the rechargeable battery, a "world's first," and cut manufacturing costs by ditching "exotic and expensive materials." To put that in perspective, the longest-range EV on the market (the top-level Tesla Model S) offers up to 315 miles of range thanks to a 100 kWh lithium-ion battery. What's more, Innolith says its use of inorganic electrolytes removes the primary cause of EV battery fires.
NC State nanoflowers can boost battery and solar cell capacity, make great prom accessories
We see a lot of sleek-looking technology pass through our doors, but it's rare that the inventions could be called beautiful by those who aren't immersed in the gadget world. We'd venture that North Carolina State University might have crossed the divide by creating an energy storage technology that's both practical and genuinely pretty. Its technology vaporizes germanium sulfide and cools it into 20-30 nanometer layers that, as they're combined, turn into nanoflowers: elegant structures that might look like the carnation on a prom dress or tuxedo, but are really energy storage cells with much more capacity than traditional cells occupying the same area. The floral patterns could lead to longer-lived supercapacitors and lithium-ion batteries, and the germanium sulfide is both cheap and clean enough that it could lead to very efficient solar cells that are more environmentally responsible. As always, there's no definite timetable for when (and if) NC State's technology might be commercialized -- so call someone's bluff if they promise you a nanoflower bouquet.
Researchers create algorithms that could help lithium-ion batteries charge two times faster
Researchers at the University of California San Diego have devised new algorithms that could cut lithium-ion battery charge times in half, help cells run more efficiently and potentially cut production costs by 25 percent. Rather than tracking battery behavior and health with the traditional technique of monitoring current and voltage, the team's mathematical models estimate where lithium ions are within cells for more precise data. With the added insight, the team can more accurately gauge battery longevity and control charging efficiency. The group was awarded $415,000 from the Department of Energy's ARPA-E research arm to further develop the algorithm and accompanying tech with automotive firm Bosch and battery manufacturer Cobasys, which both received the remainder of a $4 million grant. Wondering if the solution will ever find its way out of the lab? According to co-lead researcher Scott Moura, it'll see practical use: "This technology is going into products that people will actually use." Update: UC San Diego reached out to let us know that they were awarded $415,000 (not $460,000 as previously noted) out of a grant totaling $4 million (not $9.6 million), split between Bosch and Cobasys. We've updated the post and the press release below to reflect the correct figures.
Toyota plans dialed-back launch of eQ and iQ EV city cars in December
Toyota's just-arrived RAV4 EV will soon get a much smaller cousin -- albeit a very elusive one. An electric version of the iQ city car will arrive in Japan (as the eQ) and the US (as the iQ EV) this December, but the automaker is significantly scaling back its 2010 promises of several thousand cars sold per year to just 100 fleet-oriented vehicles. The charging times, costs and range of EVs "do not meet society's needs," vice chairman Takeshi Uchiyamada says to explain the smaller ambitions. It's easy to understand the cautious approach after seeing the car's final details. While they're not out of line with the specs of other EVs, the eQ's 3-hour fast charge, 62-mile range and ¥3.6 million ($46,130) price wouldn't have regular customers flocking to dealerships. Most of Toyota's energy is instead being funneled into its tried-and-true hybrids, with 21 due on the market by 2015, as well as plans to deliver the company's first hydrogen fuel cell car by the same year. Eco-conscious drivers may be disappointed that Toyota isn't moving as aggressively into a pure electric realm as some of its rivals, but we'd rather see smartly planned baby steps than an overly risky plunge.
Editorial: Physics and politics stand in the way of true mobile
Progress is lumpy. The future is attained in a series of epochal strides, each followed by a lot of relatively inconsequential shuffling forward. The invention of the internet (and especially the consumer-friendly web) was a rare giant step that motivated immense adoption of computers and digital lifestyles. A global marketplace of online citizens spawned gadgets, software apps, corporate gold-rushing and other feverish shuffling. Even with the opulent gadgetry we admire and enjoy, the whole expanding tech bubble seems to be reaching for something beyond itself. The incremental improvements of personal technology don't thrust into the future as much as push against constraining walls of the present. Sharper screens and thinner computers are delightful results of corporate development cycles. But we are tethered to the present, which one day will seem primitive in retrospect, by two unglamorous bridles: power and connectivity.
LG Chem develops very flexible cable batteries, may leave mobile devices tied up in knots
The world is no stranger to flexible batteries, but they've almost always had to be made in thin sheets -- that doesn't amount to a long running time if you're powering anything more than a watch. LG Chem has developed a flexible lithium-ion battery that's not just better-suited to our bigger gadgets but could out-do previous bendable energy packs. Researchers found that coating copper wires with nickel-tin and coiling them briefly around a rod results in a hollow anode that behaves like a very strong spring; mating that anode with a lithium-ion cell leads to a battery that works even when it's twisted up in knots. Join multiple packs together, and devices could have lithium-ion batteries that fit many shapes without compromising on their maximum deliverable power. Some hurdles remain to creating a production-grade battery, such as a tendency for the pack to shed a small amount of capacity whenever it's put under enough stress. LG Chem is fully set on turning these cable batteries into shippable technology, however, and could ultimately produce mobile devices and wearables that really do bend to their owners' every whim.
Georgia Tech develops self-charging battery that marches to the owner's beat
One of the last times we saw the concept of a self-recharging battery, it was part of a high-minded Nokia patent whose ideas still haven't seen the light of day. Researchers at Georgia Tech are more inclined to put theory into practice. Starting from a regular lithium-ion coin battery, the team has replaced the usual divider between electrodes with a polyvinylidene difluoride film whose piezoelectric nature produces a charging action inside that gap through just a little pressure, with no outside voltage required to make the magic happen. The developers have even thumbed their noses at skeptics by very literally walking the walk -- slipping the test battery under a shoe sole gives it a proper dose of energy with every footstep. At this stage, the challenge mostly involves ramping up the maximum power through upgrades such as more squeezable piezoelectrics. Georgia Tech hasn't progressed so far as to have production plans in mind; it's nonetheless close enough that we could see future forms of wearable computing that rarely need an electrical pick-me-up.
Korean carbon-coated lithium-ion battery could cut recharge times down to minutes
Anyone who's had to recharge an EV -- or, for that matter, any mobile device with a very big battery -- knows the pain of waiting for hours while a lithium-ion pack tops up. South Korea's Ulsan National Institute of Science and Technology has developed a conduction technique that could cut that charging time down to less than a minute. By dousing the nanoparticle materials of the battery in a graphite solution that's then carbonized, the researchers make a web of conductors that all start charging at once; current batteries have to charge towards the center slowly, like a not-very-edible Tootsie Pop. The immediate goal is to develop a secondary battery for an EV that could provide extra mileage in a matter of seconds. Here's hoping that the Ulsan team's fast-charging battery is more viable than others and spreads to just about everything -- we'd love to have EVs and laptops alike that power up in as much time as it takes to fill a traditional car at the pump. [Image credit: iFixit]
Fisker Karma owner returns from grocery run to find hybrid EV on fire
Fisker Automotive can't seem to catch break -- because its Karma hybrid EV sedan has yet again become too hot. Similar to an incident last spring that left a model burnt to near smithereens and damaged its owner's house, the Karma above caught fire in a Woodside, CA parking lot while powered off. Jalopnik was the first to get word of the incident, noting that the damage remained reserved to the front left of the vehicle, near where an exhaust is located. As the story goes, the owner found the vehicle emitting smoke after returning from a grocery run, prompting a call to Fisker and then the local fire department, which arrived as it was already engulfed in flames. In a statement to Wired's Autopia, Fisker has been vehement to note that the damage appears to be far from where the car's battery and sensitive electrical components are located, and that it wasn't plugged in for a charge -- furthermore, it's already had correspondence with the owner and is actively investigating the matter with plans to issue an update when there are findings to share. All that said, it remains to be seen whether the Karma's battery system, supplied by A123 Systems (and the focus of previous recalls), had any role in igniting the car. Thankfully there were no reports of injuries from the incident, but as you can tell from the photo, the car was essentially totaled. You'll find a video of the Karma in flames being quelled by firefighters after the break, along with the official statement by Fisker given to Autopia.
A123 Systems' new lithium ion tech keeps EV batteries cool, your wallet in check
EV battery maker A123 Systems has had a rocky history as of late following a Fisker battery recall, but it may just be turning the corner with a new lithium ion advancement. Nanophosphate EXT widens the temperature range that A123's lithium iron phosphate-based batteries can withstand before losing power: an EXT battery musters 20 percent more power than before when it's as chilly as -22F and can keep over 90 percent of its original capacity after 2,000 full charges, even if it's been run in a blistering 113F heat. The longevity has its obvious advantages for anyone who lives in an extreme climate, but it could also lead to cheaper EVs and hybrids -- the less cooling a car battery needs, the lower the up-front cost and the lighter the car gets. Full production won't start until the first half of 2013, though that's ample time for companies to at least think about slotting Nanophosphate EXT battery packs into 2014 or later cars such as the Atlantic.
Eton anticipates next natural disaster with self-powered FRX radios
Eton, the name behind solar-powered sound systems and emergency radios, is updating its disaster-preparedness portfolio with the new FRX series of self-powered radios. The FRX 1, FRX 2 and FRX 3 use hand-turbine energy to keep the internal lithium ion battery juiced, and all include a glow-in-the-dark indicator, LED flashlight and DC input. While the FRX 1 offers only the basic components, the FRX 2 and 3 have solar panels for recharging, along with a headphone jack and a USB port for powering other gadgets. The FRX 3 boasts a digital alarm and radio -- as opposed to the analog radio on the FRX 2 -- and a display for receiving NOAA weather alerts. Eton priced the radios at $25, $40 and $60, respectively, and it's currently selling the three options with American Red Cross co-branding at outlets such as Amazon, Best Buy and REI. Realizing your crank-powered Raptor is on its last legs? Check out the PR past the break.
Fisker rep defends Karma hybrid sedan in garage fire aftermath
Last week, a newly purchased Fisker Karma went up in flames, damaging its owner's home and earning the company behind that hybrid sedan plenty of bad press. The auto maker hasn't submitted an official explanation for the fire, though the former chief engineer for the late General Motors EV1 electric car places the blame on the hybrid's tight engine bay packing. Fisker clearly isn't having any of that -- according to the company's director of powertrain: Our technologies and engine design have been fully tested and certified at the highest level. It is irresponsible and ill-informed for technology pundits to suggest otherwise in order to secure media attention for unfounded claims. No defensiveness there, then.
USPS goes postal on lithium ion batteries, refuses to ship smartphones overseas
The USPS has announced that it'll refuse to ship any gear containing lithium ion batteries overseas. The postal service believes combusting power packs have caused two fatal cargo plane crashes since 2006 -- hence the ban, which takes effect from May 16th. Anyone wishing to ship the latest tech to those living or serving overseas will have to use another shipping company -- although the ban might be relaxed in 2013, once safety testing has been carried out.
Fisker Karma reportedly sets house on fire, doesn't restore cosmic balance (updated)
Fisker's Karma woes aren't relenting anytime soon, as one new owner just found out the hard way. A driver in Sugar Land, Texas parked his recently obtained hybrid sedan in his garage last week, only to have the car self-immolate minutes later and damage his new home. Despite the slight risk of lithium-ion batteries catching fire, the luxury car's power pack (unplugged at the time) appears to have been left in one piece -- suggesting that something more complicated is at fault. For their part, neither Fisker nor insurance investigators are ready to offer a definite explanation as to what set the car on fire, although an electrical panel in the garage is a possible lead. Hybrids and pure EVs typically aren't at significant risk of igniting, so we might not ask for a refund... but we would recommend keeping an eye (and a nose) on any potential fire hazards around your eco-friendly auto. Update: Looks like Fisker's about to take some more heat. Here's a statement from the owner's attorney: The fire department recently completed their investigation and determined the origin of the fire was, in fact, Gutierrez's newly purchased Fisker Karma hybrid electric vehicle that he just took possession of two weeks earlier Hit up our source link after the break to read the note in full.
New metal mix could lead to cheap, plentiful sodium-ion batteries in gadgets
Lithium batteries very frequently power our gadgets, but the material itself isn't common and, by extension, isn't cheap. Researchers at the Tokyo University of Science aim to solve that through sodium-ion batteries using a new electrode material. By mixing together oxides of iron, manganese and sodium, Shinichi Komaba and team have managed to get a sodium battery's electrode holding a charge closer to that of a lithium-ion battery while using a much more abundant material. Having just 30 total charges means this simplest form of sodium-ion battery technology could be years away from finding a home in your next smartphone or EV, although it's not the only option. Argonne National Laboratory's Chris Johnson has co-developed a more exotic vanadium pentoxide electrode that could produce 200 charges while keeping the battery itself made out of an ingredient you more often find in your table salt than your mobile gear. [Image credit: Hi-Res Images of Chemical Elements]
GM to add 'enhancements' to Chevy Volt's battery coolant system, will call back 8,000 cars
In the wake of an NHSTA "formal safety investigation," GM today announced plans to add enhancements to the Chevy Volt's battery coolant system, in the hopes of preventing any post-crash electrical fires. As a result, some 8,000 Volt drivers will have to bring their cars back to their dealerships, as part of a move that's one notch below a formal recall. GM made the decision following federal investigation that saw three batteries erupt in flames after side-impact crash tests. Regulators blamed the irregularity on a coolant leak though thus far, no similar incidents have been reported among any Volt owners. The manufacturer plans to remedy the situation by adding extra support to protect the battery during side collisions, adding an extra sensor to keep an eye on coolant levels, and by incorporating an extra bracket atop the coolant reservoir to guard against potential overflows. Vehicles with these enhancements, GM said, passed the tests without any leakage or battery pack damage. Head past the break for the full PR. Update: Chevrolet has just reached out to us to clarify that adding these enhancements is voluntary, and not mandatory for Volt owners: "These modifications are part of a voluntary customer satisfaction effort. While we will encourage customers to return to a dealership to have their Volt's modified, it is voluntary for them as well."
