from chemistry to pack
The WeLion SHE350-106Ah solid state battery cell is very close in specifications to that used in the 150kWh NIO ES6. The cell is made by Beijing WeLion New Energy Technology Co. Ltd and at ~360Wh/kg is at the leading edge of current 2023 production battery cells. This cell has a slightly lower energy density at … Read more
The BYD Blade cell is an overall design philosophy that enables high system level energy density with LFP chemistry. This is enabled by assembling the cells all together at pack level, creating a Cell to Pack design. The BYD blade cell to pack design is interesting as it has been designed by a company that … Read more
The BYD FC4680P cell is a Lithium Iron Phosphate chemistry in the Tesla 4680 cell format. 4680 => 46mm in diameter and 80mm high A small plug in the top is described as an “explosion proof valve”. Independently measured values shown in bold Key features of BYD FC4680P Dimensions Safety Data Data as shown on … Read more
LG INR 21700 M50 has an NMC 811 formulation for the cathode and a Graphite-SiOx anode. It is in the 21700 cylindrical format. Key features Designed to meet Dimensions The diameter is given based on largest measurement at the top of the cell (Section A) Test data Capacity vs Temperature Discharge Temperature [°C] Energy [Wh] -10 … Read more
The PowerCo Unified Cell is a vision from VW to simplify it’s battery packs with one cell design that works across more than 80% of it’s products. When they say design, they actually mean cell format as it appears they are intending on having 3 different chemistries to support the cost / performance trade. Remember … Read more
LG INR 18650 MJ1 is an 18650 cylindrical cell made by LG, NMC811 cathode and graphite anode with silicon. Key features Designed to meet Maximum current was based on 50% SoC nominal voltage, cutoff at 2.5V and DCIR of 60mΩ This post has been built based on the support and sponsorship of: Quarto Technical Services, TAE … Read more
The SES 50Ah lithium metal cell specification sheet was released in December 2022 [1]. Included in our benchmarking as this shows a cutting edge cell technology for 2023. However, at this point there are some questions as the data has some incomplete and missing parts. This will be described through the post where values are … Read more
In this Article, we will compare different Cylindrical Cell Sizes used in electric Vehicles. 4680 vs 21700 vs 18650.
The Tesla 4680 cell has intrigued ever since it was announced. A cylindrical cell that is 46mm in diameter and 80mm high. Estimated Specifications: Quoting a 4680 capacity without saying what rate it was measured at. In [6] the same cell gave 23.35 Ah at about C/10 but only 20 Ah at about 1C, roughly … Read more
The BYD Blade pack design is the first cell to pack design that encompasses everything this means. Not having a module and the overhead of a module is difficult to achieve. LFP cells make this design easier in some ways and this gives a new lease of life for LFP chemistry. The Tesla with CATL’s … Read more