from chemistry to pack
How does the carbon footprint change with cell chemistry? With the EU Battery Passport and India’s Battery Pack Aadhaar Number we are looking for all the levers we can use to improve our battery pack designs. The carbon footprint of manufacturing a battery cell varies significantly, with estimates ranging broadly from 10 to 394 kg … Read more
Pushing Boundaries with Sodium-ion & Semi-Solid Technologies by Jerry Wan Semi-Solid Sodium Ion Desay Battery officially unveiled its latest breakthroughs under the theme: “Expanding Sodium-ion Boundaries, Empowering with Semi-Solid Technology.” This launch signals a clear strategic direction: Sodium Ion Battery (SIB): Redefining Battery Performance in Extreme Conditions Their new generation SIB delivers: These are not … Read more
The sodium-ion supply chain: what the chemistry doesn’t tell you Author: Serguei Fenko at OmniSight Everyone is talking about sodium-ion as if it were an escape from lithium dependence. It isn’t. It just moves the dependency one tier deeper.Sodium-ion still needs a hidden midstream stack: That is where the real bottleneck sits. China controls most … Read more
The First Mass-Production Sodium-Ion Pack, that’s the headline from CATL and Changan [1]. But what does that pack actually look like and deliver? Maybe first we should look at CATL’s sodium ion cell achievements and data. CATL Naxtra Cell CATL began sodium-ion research in 2016, investing nearly 10 billion RMB to develop nearly 300,000 test … Read more
So what is the optimum calender roll temperature versus chemistry? We looked at a number of papers to offer an initial roll temperature and reasoning behind it. This is not extensive and as we have seen there are a number of other aspects that need to be considered such as energy use, LCA and capital … Read more
The CATL 24V Naxtra is a sodium ion based pack designed for commercial truck engine start and operation. CATL claim that this pack is able to operate the air conditioning all night and still start the vehicle in the morning [3]. The motor show mock up and CAD images show just 2 terminals for power … Read more
The CATL Freevoy (Xiaoyao) is a Hybrid Battery Pack, that is it has two or more chemistries within the one battery system. In this case they are using lithium ion cells and sodium ion cells. The news release from CATL [1] is quite difficult to decipher, but they are making a few claims. The generic … Read more
In this pack level chemistry comparison we have taken some generic chemistry values for NMC, LFP. LTO and NaB. Thus allowing us to do a very high comparison. The tool for this comparison is available in the Battery Calculations Workbook. Cell Data For the cells we have Open Circuit Voltage (OCV) values as an average … Read more
The Hina NaCR32140-MP10 is a sodium ion based chemistry cylindrical cell with a capacity of 10Ah. In the original release of this cell we saw a specification showing 12Ah (left image). However, the volume production shows this 32140 format is a 10Ah Sodium Ion cell. Key Metrics The maximum power has been calculated based on … Read more
A look at the Sodium Ion Cell Manufacturing Process, but perhaps more usefully a look at the differences compared to the lithium based cell manufacturing processes. Note: this is a work in progress as we gather information and knowledge. Hence some sections are empty because we do not know, not because there are no differences. … Read more