Adden Energy EV Battery – Get charged within a few mins

Adden Energy, founded by Professor Xin Li’s research group at Harvard’s School of Engineering and Applied Sciences first began studying solid-state batteries in 2015. They were developing and scaling up a brand-new type of solid-state battery.

During their research two doctoral students, William Fitzhugh and Luhan Ye started to play leading roles in the technology development process.

Adden Energy Battery
Adden Energy

How did this research journey Start and what details regarding the team?

Later, Fred Hu, Ph.D. in economics from Harvard University and Founder of Primavera Capital, joined the team and advised the commercialization of this technology portfolio through a startup company.

Adden Energy incorporated in 2021 and, in early 2022, received its 1st round of venture funding from Primavera Capital Group, Rhapsody Partners, and Mass Ventures.

A kind of battery that will get charged up as soon as possible probably within a few minutes. With demonstrated charge times as low as 3 minutes and capacity retention for over 10,000 cycles in a lab-scale cell.

Adden Energy is developing cutting-edge technologies to make mass adoption of electric vehicles around the globe with their new tech, so people can go green and save their valuable time and use it in more meaningful work rather than using it to charge your vehicle.

Adden Energy EV Battery
Adden Energy battery concept

Adden energy ev battery description

Is a new solid-state lithium-metal battery that can charge and discharge over a record-breaking number of cycles at a high current density.

The proof-of-concept device, which is fundamentally different from existing liquid electrolyte lithium-ion batteries, could extend the lifespan of electric vehicle batteries to 10–15 years, similar to that of petrol and diesel cars.

Technology Adden Energy working

Adden Energy has been developing a unique battery technology that originally came from various severe and crucial research and upon it getting discoveries created by a research group at Harvard’s John A. Paulson School of Engineering and Applied Sciences.

In the Beginning, the experimental and theoretical discovery of the overly controlled is kept together as described in their battery thermodynamics and kinetics where they placed a series of devices 1st 2nd 3rd 4th in a battery.

This group developed a new field of mechanical constriction design of battery materials now kept in two different positions 1st 2nd and devices 3rd 4th.

While carefully controlling the mechano-electrochemical environment of their solid-state batteries, this new design approach drastically improves the stability of the solid-electrolyte and the battery system.

So while researching further various critical development of this framework, the team has created an innovative multi-electrolyte-layer separator with a dynamic stability design of 5th 6th 9th series of devices and new machine learning and high-throughput computational chemistry algorithms which have predicted and can design more novel solid-electrolytes with improved performance in their 7th 8th 9th.

These technical advances have extended from side to side of these materials’ design and synthesis with in-house solid-electrolyte development and novel cell designs.

Their combined material and device innovations have enabled the demonstration of the technology with high current density lithium-ion metal anodes as well as high voltage cathodes.

Adden Energy’s technology has successfully created a roadmap that is fully focused on scaling this remarkable performance into commercially acceptable Amp-hour-sized cells.

How is the Electricity charged store used in this solid-state battery?

In the battery, the lithium ions move from the cathode side to the anode side. When this anode is made of lithium metal, needle-like structures called dendrites form on the electrode surface and grow into the electrolyte.

So when these unwanted structures pierce the barrier separating the anode and cathode, causing the battery to short or even ignite.

As this problem rises researchers in the past tried to replace the liquid electrolyte in these devices with a solid-state one that is more difficult for the dendrites to grow through.

In practice, however, lithium dendrites can still pass through the barrier via micron- or submicron-sized cracks produced when the battery is assembled.

Now the researcher has developed a solid-state battery in which lithium dendrite penetration is no longer a problem.

Rather than stopping the dendrites dead in their ways with a single barrier, their new battery design takes a multi-layered approach.

The design, which is detailed in a composite way incorporates a less-stable electrolyte sandwiched between layers of more-stable solid electrolytes. Together, these layers keep dendrite growth under control. They even call this process the sandwich effect

At first, electrolyte, which has the chemical formula Li5.5PS4.5Cl1.5 (LPSCI), is prone to dendrite penetration.

The second electrolyte, Li10Ge1P2S12(LGPS), is more robust. The idea is that dendrites are permitted to grow through the graphite and electrolyte no. 1 but stop when they reach electrolyte no. 2 – and, crucially, before they short out the battery.

The researchers found that when they paired their lithium metal anode with a LiNi0.8Mn0.1Co0.1O2 cathode’s cycling performance was very stable with the battery maintaining 82% of its capacity after 10,000 cycles at a 20 degree Celsius rate (8.6 mA/cm2) and 81.3 % of its capacity after 2000 cycles at a 1.5C rate (0.64 mA/cm2).

The design allows for a specific power of 110.6 kW/kg and specific energy of up to 631.1 kW /kg from the cathode material. The test device cycled for 1800 hours at 0.25 mA/cm2, which is substantially better than the single-electrode-type batteries the researchers tested.

It can also cycle at an extremely high current density of 20 mA/cm2 with a low “over potential” (that is, the potential difference between a theoretical or thermodynamically determined voltage and the actual voltage under operating conditions) of ~0.5 V without significant signs of short-circuiting, even at a temperature of 55 °C.

Saving Of power and time

As we learned so far about how this new generation solid-state battery will work and this will bring a revolution in the EV battery market as everyone will definitely go for power saving and getting fast charge battery but as this tech is new probability is that this will expensive and could have some glitch to which will be identified and solved only after its released.

You may also like: