Fully Charging a Smartphone in a Few Dozen Seconds?
Shizuoka University of Science and Technology and others develop storage battery that can charge an electric car in 5 minutes
April 11, 2015
An electric motorcycle equipped with the developed lithium-ion capacitor and power circuit
The Intelligent Electronic Control Systems Laboratory of Professor Hisashi Takahashi at Shizuoka University of Science and Technology, JSR, Tokyo Electron, and Ibiden have developed an electric vehicle (EV) The three companies have jointly developed a lithium-ion capacitor (LIC) with a power supply circuit and recharging algorithm (calculation procedure) devised by Professor Takahashi. The LIC is charged using a charger that combines the lithium-ion capacitor (LIC) jointly developed by the three companies with a power supply circuit and charging algorithm (calculation procedure) developed by Professor Takahashi. When used in a smartphone, it can be fully recharged in a few dozen seconds after being plugged into a power outlet. The company will develop mass production technology and work to reduce costs.
The jointly developed LIC is safe because the temperature does not rise during charging. Therefore, it can be used in a wide range of devices such as smartphones and EVs. Compared to lithium-ion rechargeable batteries, LICs can be charged and discharged more rapidly and have a longer service life: they can withstand 200,000 recharges, which means they can be used for 600 years even if a smartphone is recharged every day. This means that the battery can be used for 600 years even if a smartphone is recharged every day. Since the battery does not need to be replaced, the design flexibility of the equipment can be increased.
In a demonstration test using an electric motorcycle, a LIC with a capacity (47 watt-hours) that is approximately one-twentieth that of a rechargeable lithium-ion battery installed in the bike and a conversion efficiency of 96% were used. LIC with a capacity of approximately one-twentieth that of a rechargeable lithium-ion battery (47 watt-hours) and an isolated bidirectional DC/DC (direct current/direct current) converter with 96% conversion efficiency. DC (direct current/direct current) converter with 96% conversion efficiency. The car was charged for 10 seconds using a charger with a charging algorithm developed by Professor Takahashi, and was able to travel approximately 3.4 kilometers. If the capacity of the LIC is set to 500 watt-hours, about half that of the existing lithium-ion battery, the car can travel 30 kilometers on a 30-second charge. When the capacity of the LIC is 500 watt-hours, about half that of the existing lithium-ion batteries, a 30-kilometer run is possible with a 30-second charge. A typical lithium-ion rechargeable battery takes nearly six hours to recharge.
In the case of Nissan's LEAF EV, the lithium-ion rechargeable battery has a capacity of 24 kWh and takes about 30 minutes for a quick charge. We estimate that it takes approximately 5 minutes to recharge the battery with a LIC of this capacity and a dedicated charger. However, while the LEAF has a cruising range of 228 kilometers, the LIC has a range of approximately 1.5 to 1.5 kilometers. The LIC, however, has a range of approximately 1.5 kilometers compared to the Leaf's 228 kilometers. In addition, if an ultra-compact EV is equipped with a LIC with a capacity of 15 kWh, it can travel 100 kilometers on a 3-minute charge. The LIC can travel 100 kilometers on a 3-minute charge. The price of the LIC is "one farad (unit of electrostatic capacitance) per yen when used as a cell," according to Professor Takahashi.
The three companies launched the "Next Generation LIC Comprehensive Technology Research Association" in 2010. LICs are used in power compensators for instantaneous voltage drops (instantaneous voltage drops) as well as in some car models for idling stop systems.
Nikkan Kogyo Shimbun, December 4, 2013, page 1
COMMENT
Naoya Kurishita
Reporter, DX Editorial Department, Digital Media Bureau
It seems that Stanford University in the U.S. recently announced the development of a battery made of aluminum material that can charge a smartphone in one minute, and Japan cannot lose.
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