If water is used to run a wind turbine without a battery, can an inverter be used directly to produc

It's wasteful to add an inverter to generate electricity, because generators are all alternators. You need to manually convert it to DC and then use an inverter to convert it to AC. The conversion efficiency of the inverter is only 70%. 30% of the energy is wasted in the inverter, not counting the rectifier losses. If you want to know what to do next, ask me after you adopt him.

Researchers at Stanford University in the United States recently invented a “water” battery capable of using the difference in salt content between fresh water and sea water to produce electricity. (

Widely used in cars, electric cars, small cars, power tools, emergency lighting, audio and video products, navigation, electronic toys, instruments testing, etc.

12 V batteries have excellentTheir performance, are easy to use and easy to charge, they are therefore favored by consumers, particularly in the automotive sector. They are more widely used in electric vehicles, 12 V batteries are small. , large capacity and long cruising range.

p>

Use of water battery: Using only one water as raw material, as long as the specified amount of water is injected into the "water battery", it can generate electricity . Whether it is tap water, soy sauce, drinks or sea water, the battery can generate electricity.

< p>Characteristics of water batteries: A water fuel cell of the same size can provide 8 times more. The electrical energy of a methanol fuel cell, which means a water fuel cell can be very small to fit the size of a cell phone, the fuel cell charging time watert similar, but the capacity is several times larger, therefore. the standby time of the mobile phone can be extended to several weeks or even one or two months, and the talk time can no longer be calculated in hours

(1) Nanomaterials have strong properties adsorption and can increase. the adsorption zone. Using manganese dioxide nanorods as cathode materials in this battery can improve the power generation efficiency, so the answer is: stronger adsorption capacity (or larger surface area < /p>< p>(2) according to); total reaction of the battery: 5MnO2+2Ag+2NaCL=Na2Mn5O10+2AgCl, the silver metal loses electrons and the oxidation reaction of the lost electrons occurs on the negative electrode of the original battery, so the reaction of the The negative electrode is Ag+Cl- -e-=AgCl↓. When generating 1 mol?Na2Mn5O10, 2 moles of metallic silver are consumed and 2 moles of electrons are transferred, so the answer is: Ag+Cl--e-=AgCl↓; >

(3) According to the reaction: MnO2+C2O42-+4H+=Mn2++2CO2↑+2H2O, 2MnO4-+5C2O42-+16H+=2Mn2++10CO2↑+8H2O, the relationship formula is obtained : 5MnO2 --5C2O42---2MnO4- , assuming the mass formula n of manganese dioxide, then

5MnO2--5C2O42---2MnO4-

5 2< /p>

n 10×0.02mol ?L-1×0.02L

i.e.

5

n< /td>

＝< /tr>

2

10×0.02mol?L?1×0.02L

, the solution is n=0 .01mol, therefore the mass fraction of manganese dioxide=

0.01mol×87g/mol

1.2g

× 100 %=72.5%,

Ansonse: The mass fraction of MnO2 in pyrolusite is 72.5%.