This story is contributed by Katherine(Qianran) He and Yen T. Yeh

  • A summary of CATL’s battery production process collected from publicly available sources is presented.
  • The 3 main production stages and 14 key processes are outlined and described in this work as an introduction to battery manufacturing.
  • CapEx, key process parameters, statistical process control, and other manufacturing concepts are introduced in the context of high throughput battery manufacturing.

In many universities and startup-scale battery R&D environments, the coin cell is the default form factor to evaluate battery systems. However, in applications such as electric vehicles (EV), “cells” are typically manufactured…

This story is contributed by Neeraj Kumar Singal

  • Union government policies and schemes like FAME I and FAME 2, the PLI Scheme, and the Scrappage Policy encourage the use of EVs and incentivize manufacturers.
  • About 50% of Indian States have state policies for promoting the use of EVs.
  • Concessions to users include a financial subsidy on purchase, exemption from road tax, registration charges, and low interest rates on loans.
  • Initiatives for bulk purchasing of EVs for the public sector, personal and public transport entities, and last mile delivery operators.
  • Infrastructure development for battery & vehicle manufacturing, charging infrastructure, and scrapping…

This story is contributed by Rebecca Wolkoff, ChargeNet

  • Energy storage systems provide value by reducing the cost of electricity from the local utility, but the rules governing those utility bills are often complex.
  • Energy arbitrage is the process of buying energy at a low rate and selling at a high rate, and net metered energy sold back to the grid is valued at a lower rate.
  • Demand rates are based on the maximum power used during a set period of time, typically over a day or a month, and sometimes during specific hours of a day.
  • During demand response events…

This is story is contributed by Kunal Phalpher, Li-Cycle

Lithium-ion batteries being fed to the shredder (source: Li-Cycle)

Given ongoing, pressing concerns surrounding climate change, renewable energy has become a topic that is more widespread than ever before. Statistics and figures recently released by NASA reveal the global average surface temperature was just shy of one degree Celsius warmer than the 20th century global average. It is clear that progressive strides towards a greener future are vital.

With fossil fuels being a major contributor to the greenhouse gas emissions driving climate change, the obvious solution lies in renewable energy production and storage. While this seems like an easy solution…

This story is contributed by Tejal Sawant from the conversation with Nicholas Perkins


BatteryBits interviewed Nicholas Perkins, a senior battery engineer at Form Energy based in Somerville, Massachusetts to talk about the world of batteries, his experiences in the battery industry, the importance of having a motivated team, and the challenges and opportunities associated with managing a team in a battery startup as compared to an established company.

Article Snapshot

  • If you want to ensure that you have a challenging problem to work on in the next 20 years related to energy, then batteries are what you need to work on.
  • Work…

This story is contributed by Adesh Mehta

  • BYD, the first Chinese company to make lithium-ion batteries, started as a mobile phone battery manufacturer for 8 years before entering the EV industry in 2003.
  • BYD is the world’s first fully vertically integrated EV maker, with the capability to manufacture battery cells and IGBT transistors, the two most expensive components in an EV.
  • BYD’s CVD approach of culture, vertical integration, and diversification have contributed to its rise in China and beyond.

Story of BYD: Back in the Day

Battery giant BYD, a leader in Chinese manufacturing for decades, is now facing increasing competition in the EV era.

Before the…

This story is contributed by Pooja Vadhva

  • Recently, there has been much hype surrounding solar-powered electric vehicles (EVs) such as the Tesla Cybertruck and the futuristic Lightyear One. How much range is achievable on solar power alone?
  • Solar EVs could revolutionize urban cities by allowing vehicles to rely less on the grid and reducing the need for charging infrastructure.
  • This article provides a case study of solar EVs in developing countries.

A solar panel electric car

“A van, because you have a big flat area, that’s actually where solar starts making a little more sense…even if the apocalypse happens, you can still drive it around…

This work is contributed by Charlie Parker

  • The European Union/European Economic Area (EU) proposed battery regulation seeks to create a closed-loop, cradle to cradle battery production ecosystem with mandatory, traceable recycling and recycled content in lithium-ion batteries.
  • Production scrap from new EU factories will necessitate a rapid ramp-up in recycling capacity. A mix of incumbent recyclers and startups will deploy newly developed technology native to lithium-ion through acquisitions, licensing, and public financing.
  • Second-life, early scrap age, total loss accidents, and “vestigial hybrids” will shift the majority of recycling feedstock away from OEM repair shops and towards “orphan” or “stranded’’ batteries…

This story is contributed by Zhiwen Huang, Linda Jing and Eric Y. Zheng

  • China will maintain its No. 1 position in the battery industry, as no one can beat China on cost, especially since most of the battery supply chain is in China.
  • China’s supply chain is extremely well developed, in large part due to the government’s aggressive policies to propel the growth and development of this industry.
  • EV has a trend of being defined as a new class of consumer electronic products.
Source: Benchmark Mineral Intelligence


In the battery industry, China’s contributions are no longer limited to its massive consumer market. China has…

This story is contributed by Ashish Gogia.

  • Separators are electrochemically inactive thin porous membranes that physically separate the cathode from the anode, while allowing ion transport to occur.
  • Separator shutdown above the melting point seeks to prevent thermal runaway by stopping ion flow between the cathode and anode, but separator breakdown at even higher temperatures can lead to thermal runaway.
  • Ceramic-coated separators and high melting point polymer materials are promising candidates due to their improved thermal stability and tolerance for abuse, but further development is still needed for increased safety and reliability.


The safety of Li-ion batteries (LIBs) is…


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