New Dual Carbon Battery charges 20x faster than Lithium-Ion Battery
6/17/14 4:09 pm chumakdenis 2
Power Japan Plus has announced an innovative new battery that charges up to twenty times faster and lasts longer than high-end lithium ion batteries. The company boasts that electric vehicles with the ability to drive 300 miles (480 km) on a single charge may soon be a reality. The Ryden dual carbon new battery is cheaper, safer, and 100% recyclable, making it an attractive option that could bring high-performance electric cars to market more quickly.
“Power Japan Plus is a materials engineer for a new class of carbon material that balances economics, performance and sustainability in a world of constrained resources,” said Dou Kani, CEO of Power Japan Plus in a press release. “The Ryden dual carbon battery is the energy storage breakthrough needed to bring green technology like electric vehicles to mass market.”
The battery was developed in partnership with Kyushu University in Japan. The beauty of the battery is in its simplicity. The anode and the cathode of the battery are both made out of carbon with an organic electrolyte solution that allows for ion current to flow separately. This also does not require the use of any rare Earth metals or other rare metals, significantly cutting down on the price of each unit.
Thermal stability means that this battery will not heat up while in use or during charging, and removes the threat of thermal explosion and making for a safer battery. This also means that expensive cooling systems do not need to be used, also driving down the price. The battery is stable enough to be discharged completely without harming the longevity of the product. Currently, the Ryden battery is rated for 3,000 charge/discharge cycles before the function of the battery begins to diminish. To put that into perspective, current electric cars advertise 300-500 charge cycles before the owner needs to think about replacing the battery.
Eventually, Power Japan Plus hopes to expand this technology and create other batteries whose only active ingredient is organic carbon sourced from organically grown cotton. This will allow them to control the size of the carbon crystals, enhancing product performance.
Production is set to begin soon, initially producing 500-5,000 batteries per month. The first batteries produced are slated to be used in satellites and medical devices, and will expand operations when the technology is licensed out for use in electric vehicles.
Dual-Carbon Battery vs Lithium-Ion Battery
Same energy, longer life, safer, recyclable.
It is also almost entirely recyclable, with less energy input over its lifetime - and none of the rare or heavy metals required in various lithium-ion cell chemistries.
Dual-carbon cells have been described in theory since at least 1978, but years of development were required to make them reliable, cost-effective, and suitable for mass production in high volumes, Power Japan Plus CEO Dou Kani told Green Car Reports.
The breakthroughs in chemistry were achieved by chief technology officer Kaname Takeya and Dr. Tatsumi Ishihara of Kyushu University in Fukuoka, Japan, which partnered with the company to develop the cell for commercial applications.
While they cannot provide details due to multiple pending patents, Takeya said that the chemistry requires specific and proprietary changes to the nanostructure of the carbon crystals.
While Power Japan cannot disclose its first customer today, CEO Kani said, it will announce a partner in August, that will build battery packs and add a battery-management system.
Energy capacity over life cycle
The company isn't holding back the hyperbole.
With energy density comparable to lithium-ion, the company claims that its Ryden dual-carbon chemistry can both recharge up to 20 times as fast and deliver more than 4 Volts of power from a single cell.
Power Japan says a Ryden cell barely heats up during charge and discharge-it "experiences minimal thermal change"-vastly reducing the risk of thermal runaway that can lead to explosion and fires.
In other words, an electric car's battery would hold its full energy over 10 years or more, and could be discharged right down to 0 percent of capacity without damage.
New chemistry, same production process
And equally important for practicality, the new dual-carbon anode and cathode can both be produced by existing cell manufacturing processes - and require essentially just a single material as input: carbon.
That reduces the number of materials that must be procured for the supply chain, simplifying the entire production process.
Power Japan Plus says it will start production of Ryden cells in the 18650 "commodity cell" format later this year at its small production facility in Okinawa, Japan.
Those cells will be intended for low-volume specialty markets, including satellite and medical-device energy storage - in volumes of 500 to 5,000 cells per month. For higher - volume production intended for other markets-including plug-in electric cars - the company will license its technology and consult with existing battery makers to enable them to produce the anode and cathode materials in their own facilities.
The material, known as Carbon Complex, which is made using naturally-grown organic cotton that is then processed using special techniques to control the size of the carbon crystals formed during production.
Early test cells are not produced with the organic carbon, but the company's goal is to create a battery cell that is not only competitive with today's lithium-ion cells but uses entirely organic input materials that can be fully recycled at the end of their life.
They are likely to remain the default battery chemistry for electric cars at least through the end of the decade.
But the Power Japan Plus announcement - along with other potentially promising advances in lithium-air cells and other advanced chemistries - show the vital importance of battery technology to the future of transportation.
Partnership to develop Dual Carbon Battery for racing
Racing group Team TAISAN and materials engineer Power Japan Plus have formed a partnership to develop an electric racing vehicle, which will be the first in the world to use the Ryden dual carbon battery.
Under this partnership, Power Japan Plus will provide Ryden cells and Team TAISAN will leverage its vast experience in international racing to optimize the battery and develop a battery pack and management circuit. A go-kart powered by the Ryden dual carbon battery will begin test driving August of this year.
“We have faced a number of issues with electric vehicle batteries up until now. The Ryden battery from Power Japan Plus is the solution we have been searching for,” said Yasutsune Chiba, owner of Team TAISAN. “We will first develop a battery capable of withstanding the rigorous demands of racing, before advancing the technology for use in commercial applications."
Team TAISAN has faced many roadblocks with conventional battery technology, the danger of thermal runaway being the most prevalent. Intense heating prevented other electric vehicle (a Tesla Roadster) racing cars used by TAISAN from running continuously. In searching for a solution to this problem, Team TAISAN discovered the Ryden dual carbon battery developed by Power Japan Plus.
The Ryden dual carbon battery wields an energy density comparable to lithium-ion batteries, with a much faster charge time. In addition, Ryden is resistant to heating during operation, mitigating the threat of thermal runway and yielding a simpler battery pack cooling system.
"Team TAISAN has profound experience in automotive technology, especially with the high demand world of motorsports,” said Dou Kani, CEO and co-founder of Power Japan Plus. “I am confident that by working together with Team TAISAN, we can produce an irreplaceable electric vehicle battery unlike any ever made.”
Development will start with a go-kart powered by the Ryden dual carbon battery, which will undergo endurance testing in harsh summer heat conditions this August. The team will then build a full scale EV racing car driven by a Ryden battery pack. Team TAISAN will conduct endurance and safety tests on the electric racing vehicle at its facilities in Chiba Prefecture, Japan, with a goal for the vehicle to debut in a Japanese EV racing competition.
Established in 1983, Team TAISAN is recognized as one of Japan’s most prestigious racing teams, with a total count of 72 victories. Among these victories, Team TAISAN has won 13 Japanese national racing championships – eight during the last 20 years – at the All Japan Grand Touring Car Championship (JGTC) / Super GT (SGT). The team has also won six overseas championships, including The 24 Hours of Le Mans in the GT class in its very first attempt, going on to complete the race a total of six times. The team has also been actively involved in EV endurance racing in Japan.
Team TAISAN was an early adopter of the Tesla Roadster, champion at the 2011 ALL JAPAN EV-GP SERIES, as well as the modified EV Porsche 916 model, which completed four, one-hour endurance races hosted by the EV Club, with third place honors in the lead-based battery class.
The partnership was announced publically prior to the start of the 24 Hours of Le Mans race this past Saturday in Le Mans, France