Month: June 2024

We are excited to share insights from the Battery Cells & Systems Exhibition & Conference (BCSEC) 2024, held from May 15-16 in Birmingham. This event gathered industry leaders, innovators, and experts to discuss the latest advancements in battery technology and energy storage solutions. Our detailed report covers key highlights from the conference, including advancements in lithium-ion and solid-state batteries, sustainable practices in battery manufacturing, and the impact of emerging technologies like sodium-ion batteries. Additionally, the report features insights from notable speakers and presents strategies for optimizing gigafactory projects and battery management systems.

Welcome to our latest blog post where we delve into the key insights from the China International Battery Fair (CIBF) 2024, held from April 26-28 in Chongqing. As one of the largest and most influential events in the battery and energy storage industry, CIBF 2024 showcased groundbreaking advancements from over 1,500 exhibitors, drawing more than 100,000 visitors worldwide. Highlights included significant progress in lithium-ion batteries, with high-energy density cells and fast-charging technologies promising to revolutionize electric vehicles and industrial storage. The emergence of solid-state batteries was another focal point, indicating a shift towards commercial viability with anticipated mass production by 2026. Additionally, the event underscored the growing importance of sustainable battery materials and innovative energy storage solutions, highlighting advancements that enhance efficiency and scalability for grid applications and renewable energy integration. Sodium-ion batteries also made headlines, particularly with BYD’s substantial investment in a new mass production facility. Enhanced Battery Management Systems (BMS) featuring machine learning and AI capabilities were prominently featured, offering improved performance monitoring and safety. This event reaffirmed China’s leading role in the battery industry and provided invaluable insights that will inform our future work.

PFAS (Per- and Polyfluoroalkyl Substances) have become a significant pollution concern in recent years. Utilized since the 1940s in numerous everyday items due to their desirable properties, such as resistance to water, oil, and heat, these “forever chemicals” have been linked to severe health risks, including cancer.

In addition to their widespread use in consumer products, PFAS are also integral to the production of nearly all lithium-ion batteries. They are found mainly in three different parts of the battery:

1. Binder for the Electrodes: PVDF (polyvinylidene fluoride) and PTFE (polytetrafluoroethylene) are the most commonly used binders in electrodes, and both are PFAS materials. Although many manufacturers produce anodes using water-based processes (thus avoiding PFAS materials), virtually no one makes cathodes without PVDF, except for companies like Leclanché and a few startups. Replacing PVDF in cathodes is far more challenging than in anodes due to corrosion and pH issues.
2. Electrolyte Additives: Some electrolyte additives belong to the PFAS family. While these are not always present in the batteries, some manufacturers still use them. There are alternative, proven additives available and in use today, but PFAS-type additives remain common among certain manufacturers.
3. Separator Coatings: The coatings on separators are often made using PVDF as a binding agent. Although the separator itself is usually made of non-PFAS materials like PE (polyethylene) or PP (polypropylene), the ceramic coatings require binders to adhere to the base material and to hold the ceramic particles together. PVDF has been the primary material used for this purpose. New separators using PMMA (polymethyl methacrylate) as a replacement for PVDF are emerging but are still in the early stages of deployment. Non-coated separators typically do not contain PFAS, but safety considerations often prevent their use.

Understanding the pervasive presence of PFAS in both everyday items and critical technology like lithium-ion batteries highlights the urgent need for continued research and development of safer alternatives. Reducing reliance on these harmful substances is crucial for protecting both human health and the environment.