Benefits of Aluminium Cell Housings for Cylindrical Lithium-ion Batteries

A 4680 cell concept The battery industry is targeting larger cell formats, which enable simplified module design and cell-to-pack or even cell-to-chassis solutions. In this regard, hard case battery cells and in particular cylindrical cells will play an important role in enabling the named developments. Tesla’s announcement of a tabless 4680 cylindrical LIB has triggered … Read more

10 things about SSBs that you are often not told

Author Dr. Simon Madgwick of Nuvvon Inc. As an overview, this post cannot cover every possibility or explain in depth. Nonetheless these 10 topics give a reasonable overview of solid-state batteries in terms of what is less transparent in the publicity and hype of solid state. To be clear, we need solid state batteries, but … Read more

Cylindrical Cell Comparison 4680 vs 21700 vs 18650

In this Article, we will compare different Cylindrical Cell Sizes used in electric Vehicles. 4680 vs 21700 vs 18650.

Battery Module: Manufacturing, Assembly and Test Process Flow.

In this article, we will look at the Battery Module Production. There are 7 Steps for Battery Module Production.

Tesla 4680 Cell

Tesla 4680

The Tesla 4680 cell has intrigued ever since it was announced. A cylindrical cell that is 46mm in diameter and 80mm high. Estimated Specifications: Capacity tests [6]: Capacity: 23.35Ah at 2.5A discharge ~C/10 Capacity: 20Ah at 25A discharge ~1C 26.5Ah (estimate based on 21700 5Ah volumetric energy density) and this fits with capacity of the … Read more

Cells in Parallel

resistance in busbar joints

When connecting cells in parallel all of the negative terminals are connected together and all of the positive terminals are connected together. The capacity of the parallel group is the sum of the capacity of the cells. Hence three 5Ah cells connected in parallel will give a total capacity of 15Ah. 3 cells connected in … Read more


CATL logo

Contemporary Amperex Technology Co. Limited Chinese battery manufacturer and technology company founded in 2011 that specializes in the manufacturing of lithium-ion batteries for electric vehicles and energy storage systems. Company URL: Technology CATL Qilin CTP 3.0 This is the second cell to pack design that CATL have shown. This is using their prismatic cells … Read more