search results

Return to emergency battery 1.5 billion people around the world live in non-electrified areas ​ We supply these people with electricity such as lighting and cell phone charging ​ Supplying electricity in the event of a disaster in Japan Small LED

​Magnesium is Dangerous? ​ It is often said that magnesium is explosive and dangerous. Actually it will explode in the form of powder, however, even wheat, iron, coal and so on are explosive too. .. However magnesium does not catch fire in the form of sheet like 1mm thick. The following video demonstrates of safety of magnesium.

Inconvenient Truth of Electric Vehicle No Lithium No Charging Station ​ Too Expensive Battery Lithium Exists in Ocean? It is often said that ocean contains large amount of Lithium. However, Lithium resource in whole ocean is only 250 billion tones. In contract, magnesium resource is 1.8 quadrillion tones. Getting 1 billion tones of Lithium needs 1/250 of whole sea water on Earth. This corresponds to 30 m depth of Pacific Ocean !! ​ ​ Charging Problem ​ Electric Vehicle can run 600km with 100kWh battery. If we charge this battery within 1 minute like gasoline pumping, however, we need electricity of 6MW. Consider 1 house uses 10kW at peak, this corresponds to electricity of 600 houses. Once all the charging stations spontaneously charge EV, we meet tremendous fluctuation of electricity supply. It is said that when battery is improved, charging time should be very short within a minute and there would be no problem of charging. However, real problem is not for battery but for electric power supply. ​ ​ Why we need Yabe Magnesium Battery for EV On-Board Magnesium Battery can Charge the Lithium Battery during Crusing ​ Yabe Magnesium battery provides 1.5kWh / kg. For 100kWh, 67kg magnesium is used. If the lithium battery is charged with 20kW during 5 hhours, magnesium battery size will be 56cmx72cmx80cm which can be installed in the trunk of the car.

Yabe introduction ​Material Photo tv Video Collection Environment issues Who is the proponent of a recycling society? December 2016 2008 ​ Honda Foundation Lecture 2006 Sankei Shimbun 2005 Nikkei Newspaper A novel about Yabe and the magnesium circulation society

Why is a Magnesium Recycling Society Necessary? Solar energy cannot be an alternative energy ​ ​ Many people often argue with the average value, but in the case of the sun, as shown below, the average value is 4 hours a day even if there is no sunshine for 4 days. However, it would be a problem without electricity for 4 days. You will need a storage battery to store these four days. ​ This is a 10.8 billion kWh storage battery, which is not very feasible. Storage of hydrogen energy is a problem ​ Hydrogen has a small volume density, and even at high pressure, it is nearly an order of magnitude smaller than gasoline as shown in the figure below. This is disadvantageous for transportation because the volume is an order of magnitude larger when transporting. As shown in the figure on the left below, with 700 atm of hydrogen, a weight of 7,000 tons is applied per 1 m square, making it impossible to make a large container. This also adds the weight of the container, which reduces the energy density per weight. To store it as liquid hydrogen, it needs to be cooled to -253 degrees Celsius, but the power is enormous. Therefore, it is necessary to refrigerate only with heat insulating material, but if the full tank contains hydrogen or if a small amount remains, the amount of heat to hydrogen per unit volume will increase, making it impossible to store for a long time. increase. For hydrogen storage alloys, etc., a method that does not use any energy for the storage and release of hydrogen has not been found at present ​. ​ If hydrogen is extracted from hydrocarbons such as methane and methanol, CO2 will be emitted and it is meaningless. ​ ​ Energy currency ​ ​ I advocate the concept of energy currency . Until now, the energy currency has been fossil fuels. Is there a new currency that will create an energy cycle in the future? The annual consumption of fossil fuels is 10 billion tons, so if you don't always think about this, the discussion will be empty. We believe that this is the only equivalent of magnesium, which has 1800 trillion tons of resources. Mg power generation Mg regeneration EV Freshwater equipment Mobile charger Emergency battery

Mg power plant Electric vehicles need fuel cells ​ Gasoline cars have spread around the world in the last 100 years because they run on fuel that can be refilled in minutes. The electric vehicle currently under consideration has the drawback of having to be recharged. Another issue is the material of the rechargeable battery. So is there a new fuel alternative to gasoline? Hydrogen fuel has fuel storage and transportation issues and is even more problematic than rechargeable batteries. Professor Emeritus of Tokyo Institute of Technology Yabe claims that magnesium plays that role. Moreover, if you get it from seawater, it will be cheaper than gasoline. ​ Charging problem ​ An electric vehicle can run 600km with a 100kWh battery. However, in order to charge this battery in 1 minute, which is the same as the gasoline refueling time, 6 MW of electricity is required. Even if the peak of electricity used in one house is 10 kW, it is equivalent to 600 houses. With all charging stations using 6 MW each, the time variation of this power is tremendous . Some people say that if the battery is improved, it can be charged within 1 minute, but the problem of charging is not related to the performance of the battery and is a problem of power supply. A very large amount of power is required for a short charge . It is strange that no one says how to solve the momentary fluctuation of high power at charging stations here and there, let alone building the power infrastructure . ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Battery replacement is not possible ​ There is also the idea of replacing the battery . Since it takes a long time to charge, the idea is to keep a number of charged batteries and replace them. It sounds good, but if you imagine the situation in Japan, you can see that this is completely impossible. Looking at one gas station, there are times when dozens of cars are concentrated in an hour. Depending on the time, it may not come at all. But spare batteries need to accommodate this concentrated time zone. Even after that time, I don't know when the next wave will come, so I have to charge dozens of cars within an hour. This is the same as charging in a few minutes, so it still requires a huge amount of power. ​ ​ ​ ​ ​ ​ ​ ​ No battery material Is it in seawater? Some people say it's okay because seawater is rich in lithium. However, there are only 250 billion tons of lithium in the oceans of the world. In contrast, magnesium is 1800 trillion tons. ​ To get 1 billion tons of lithium, we need 1/250 of the world's seawater. This is equivalent to seawater at a depth of 30m in the Pacific Ocean. Disc-type magnesium fuel cell controls EV Professor Emeritus of Tokyo Institute of Technology Yabe proposed a completely new fuel cell and obtained a patent. A disk-shaped battery like the one on the lower right is inserted into the battery part (black part) while rotating. After the reaction, it will leave the battery section. This will result in 10-20 battery reactions. The important thing is that you can stop the battery in the middle and just insert the fuel when you restart. In the height direction, multiple batteries are connected in series. For example, a battery with a diameter of 60 cm and a height of 50 cm will produce a battery with a diameter of 36 kWh and a weight of 26 kg. With a lithium-ion battery, a battery with this capacity weighs about 200 kg, making it possible to create a lightweight, high-output battery. Charging while driving with in-vehicle magnesium battery ​ Yabe Magnesium batteries have an energy of 1.5kWh / kg. It means that 67kg of magnesium is required for 100kWh. If you charge the battery at 20kW for 5 hours while driving, the size of the battery will be 56cm x 72cm x 80cm, which is the size that fits in the trunk.

EV Emergency Safety Mg Engine Difficulty in Magnesium Battery ​ ​ When magnesium reacts as battery, reaction product shown in left photo is produced on the magnesium surface. Since these reaction residues is is close to insulator, the electric resistance increases and inner part of magnesium covered by insulator cannot react. Solution ​ As left bottom figure shows, thick magnesium might be used for a long hours, however, insulating reaction residue is formed on the surface and it inhibits further reaction and output is strongly reduced. ​One solution might be to include some chemical component in electrolyte. In this case, however, electrolyte volume increases and electric resistance increase, lowering output power. electrolyte should also increase resistance. Yabe proposed completely different approach. As left bottom figure shows, magnesium as thin as possible is used and reaction ends before insulator inhibits the reaction and then another magnesium is fed into the system number of times. ​Then we succeeded to keep high power output. The other merit is the required electrolyte becomes very small and the distance between two electrodes decreased leading to small resistance. After magnesium fully reacts, it becomes powder. This powder is taken away enclosed in cloth bag. In general, battery performance is measured by Wh / g which is output / battery weight. In refueling battery, if the amount of fuel is much larger than battery main body. , battery weight is negligible and hence performance is determined only by fuel performance without battery body. Thus getting maximum performance of magnesium battery, Yabe battery is essential. Superiority of Yabe Magnesium Battery

Cellphone Charger Detail ​ 12V, 200W, 400Wh After use, fuel is inserted in the battery and use again Magnesium battery (Center) of 12V DC output is converted to 100V AC by inverter (right bottom) which provide electricity to television. Bottom photo shows simultaneous drive of light bulb and television. 12V, 150Wh