Is we have enough "storage"

energy from the sun in just 2 min can power the whole humanity for a year but we won't have enough storage to store it. because of current battery technology and that's why solar and wind energy is not able to contribute in the same way coal and gas do. and electricity we use today is create just a moment ago you use it. and because of the very same reason solar and wind energy were not used for current energy supply. Because what happens when the sunsets and wind stops and in place even this workes it must be the backbone with non-renewable sources. And that stops us from being green.

so think of a battery that store energy on an electric grid  that charges with solar and wind farms and realize it at the time of need this is where "liquid metal battery"-LMB comes into picture develop by a professor at MIT with his  students. "this shows us the need of good professor" 

"An electric grid or power grid is an interconnected network for delivering electricity from producers to consumers."

Conventional Batteries.

a simple battery is consist of solid electrodes and liquid electrolyte like most famous li-ion battery we use today in mobile phones, Evs and other similar areas. So why we won't use them at the electric grid for energy storage. 

1-Think about tesla's model-s which uses battery made up of 8000-9000 cells similar to your "TV remote cell" but rechargeable. a typical tesla battery holds 100 KWh and for a typical grid which need to power 200 homes needed millions of these cells and hence made it dum idea to use it. 

2-They require protection from being overcharged and discharged too far. In addition to this, they need to have the current maintained within safe limits. and this is not possible in case of power supply to the grid because frequencies changes dramatically.

li-ion battery is great for smaller devices but for grid-level where you need to store megawatts of energy if it catches fire imagine the disruptions it can cause.so ['see birds of prey factory see to get intuition']

even when we reduce its cost with the economics of scale it has a problem of catching fire and durability. even if this is not the challenge making and disposing of them again a big issue so these solid states battery "li-ion" is  good for Mobil devices and EVs but at grid-level storage answer is not clear to me

Compelling Solution:

LMB-liquid metals battery

LMB consists of all liquid metals form electrodes to electrolyte low-density liquid metal act as negative electrode while 

high density acts as a positive electrode and in between them there is an electrolyte and due to their natural properties, they are immiscible.

1- Because the components are liquid, the transfer of electrical charges and chemical constituents within each component and from one to another is ultrafast, permitting the rapid flow of large currents into and out of the battery.

2-It is much easier to replace electrodes and electrolyte in LMB's due to their liquid nature 

3-these battery uses earth-abundant elements like magnesium, antimony, bismuth, and alloys of very similar metals hence make it cost-effective.

4-as the battery operates at high temperatures of about 300-400 degree Celcius so there is no chance of explosions due to high temperature because it is designed to work for that 

5-the self-segregating nature of the liquid components could facilitate simpler, less-expensive manufacturing compared to conventional batteries.

how it works LMB has liquid metals of different density:

Take LMB prototype

which has magnesium at top and antimony at the bottom why because of their density, earth abundancy, and high mutual reactivity and for electrolyte they use magnesium chloride but they are not open about its compositions and other facts 

Chemistry Involves

So to produce current, magnesium loses two electrons to become magnesium ion, which then migrates across the electrolyte, accepts two electrons from the antimony, and then mixes with it to form an alloy. The electrons go to work in the real world powering our devices. Now to charge the battery, connect a source of electricity. It could be something like a wind or solar farm. And this forces magnesium to de-alloy and return to the upper electrode, restoring the initial constitution of the battery. And the current passing between the electrodes

generates enough heat to keep it at temperature. 

We choose to work on grid-level storage,

not because it is easy,

but because it is hard."

if you want to make dirt cheap make it out with dirt

says Sadoway  founder Ambri 

Namaste 

Anish Jain

GreenGarbage

Concrete that traps co2 forever -Green Concrete

the world is expecting more than 2 trillion sq feet of new building space by 2060

that's the equivalent of adding another Hyderabad every month for the next 50 years. many of these buildings will be made using cement a massive emitter of greenhouse gases.it is the 2nd most consumed substance on the planet after water. cement industry generates approximately 8 percent of global CO2 emissions.if you consider the cement industry as a country then it would be the third-highest emitter after China and the United States.

Cement vs Concrete:

a simple analogy is if you consider cement as flour then concrete is a cake a finished product.concrete is a mixture of rocks, sands, water, and most importantly cement that binds it all together. without cement concrete doesn't hold up skyscrapers.to make cement we dig out limestone and run it through klin where it heated with very high temperatures of around 1500 degrees Celcius and during this process each 1000 kilogram of limestone produces a half a kilogram of co2. cement is the glue to make concrete it hardens the concrete and given the strength and compressibility that make concrete perfect for infrastructure 

Solution:

CO2 mineralization is a technology that introduces recycled CO2 into fresh concrete. CO2 is converted to a mineral and becomes permanently captured forever. and the best part of that it improves the compressive strength of the concrete. that right the real selling point here adding CO2 makes a concrete stronger that means concrete producers can use less cement in their mixtures and still achieve the same strength. less cement equals fewer emissions of CO2. This enables production efficiencies as well as carbon footprint reductions. this technology is invented by CarbonCure

Impact:

ultimately if this technology was deployed across the globe this could reduce 700 megatons of CO2 emission ("7 billion metric tones. total CO2 emission is around 36 billion metric ton") every year and that's the same as taking 150 million cars off the road every year or CO2 reduction from 500 million acres of trees annually.

business point of view:

concrete companies pay to use CarbonCure signature system and have to buy/trade CO2 from a factory where its emitted but they save money by using less of their most expensive ingredient cement. well we have to understand that to make environmental impacts we have to make business sense it's an environmentally friendly business model.

Final Words:

my inspiration to this blog post this video Climate Change, how covid19 impact all of us this show us what happens when human mess with mother nature. climate change is a reality we have to think about it. THINK HUMAN THINK!

and this blog helps me start with this

FBR’ a silly acronym that can help you to get started with anything

check it out if you really want to get started because at last it only matters 

how you feel about this climate change let me know and  let me know how you feel about this blog and please share it if you think it is impactful 

Namaste this is Anish Jain

from greengarbage