Version 3.1.0
October 12, 2026Latest- MaterialsNew silicon-carbon composite anode (Si-C) available.
- MaterialsNew advanced hard carbon anode available (HC#2).
- MaterialsSodium cathode default first cycle efficiency values have been updated for improved accuracy.
- PricesPrices have been updated for October.
- PricesThe price of a pure Si anode is now using pure micronized silicon, which is substantially cheaper than the previous Si-C price assumption.
- Design ChangeBlended anode voltage curves are now weighted by each material’s share of capacity rather than its weight fraction. Higher capacity anode materials now contribute more towards nominal voltage than lower capacity anode materials.
- FeatureNew variable available to change processing methods between stacked or wound electrode stacks. Choice only changes processing costs.
- FeatureRegional cost options (China, USA, Germany, Hungary) added under each price month; the original price set is now named BatPac. Direct labor now has a separate benefits % input.
- Design ChangeCapacity loss due to anode FCE is now no longer as penalizing. Instead of the conservative case where the cathode contributes 0% to anode FCE losses, the cathode is now assumed to contribute 100% to offset these losses. This is a new variable that can be set under cathode design.
- Bug FixSilicon oxide anode density calculations were using Li₂O₂ density (2.4 g/cc) instead of Li₂O density (1.97 g/cc).
- Bug FixThe full-cell voltage chart now applies an overridden first-cycle efficiency to lithium- and sodium-metal anodes, matching the calculated results.
- Bug FixThe cell container material drop-down is now properly connected and can be changed. No change to the calculation engine, but users can now properly change the cell container material.
- Bug FixMinimum electrode porosity now works as intended for blended electrodes. Overriding this value will re-calculate the coated electrode porosity.
- Bug FixThe NaCrO₂ half-cell charge and discharge curves were inverted, which has now been corrected. Expect a small change to modeled cells with NaCrO₂ cathodes.
- UIUsable cathode loading is now visible as an output on the electrode thickness diagram. This value reports the reversible cathode capacity per cm².
Version 3.0.5
October 5, 2026- Bug FixPreset blended anodes now use the correct binder for cost instead of a PVDF default.
- Bug FixLi-S carbon content now affects cathode cost.
- Bug FixIn the Comparison Tool, "electrode density" now means the coated electrode density including pore volume. The zero-porosity value is shown separately as the coating solid density.
- Bug FixSweeps and target comparison modes now respond to electrode composition and porosity.
- Bug FixNovel blends started from a custom anode now give the same result live as after saving.
- Bug FixFixed a bug that prevented loading & proper saving of electrode, cell, cost, and manufacturing sub-designs.
- UIPorosity inputs in the sweep tool now use the Design Studio’s names: Coated Electrode Porosity and Minimum Electrode Porosity.
- UINew Design Help entry explaining minimum electrode porosity, linked from the "?" beside that row.
Version 3.0.4
September 14, 2026- FeatureTarget Finder: the comparison tool has a new "target" mode that solves designs backwards from a target result(s). Set target outputs and open any number of variables as degrees of freedom to solve the design.
Version 3.0.3
August 19, 2026- Design ChangeCylindrical cells now grow in height to accommodate electrolyte and volume expansion, matching the excel spreadsheet (pro). When electrolyte and expansion volume exceed the space available, the cell height increases now instead of the previous reduction in winding turns. Anticipate changes to cylindrical cell designs with high volume expansion.
- UIThe cylindrical cell design section now shows an editable jelly roll height and a final cell height, and warns when a design has grown beyond its standard height.
Version 3.0.2
August 19, 2026- UIElectrode design diagram improved for clarity. Volume expansion and electrolyte fill factors are now visually apparent and electrode density is reported in the diagram.
Version 3.0.1
August 13, 2026- MaterialsThe maximum theoretical capacity of silicon is now based on Li₁₅Si₄ (3,579 mAh/g) rather than Li₂₂Si₅ (4,211 mAh/g). Li₁₅Si₄ is the phase that forms at room temperature; the previous value corresponded to the high-temperature phase. This raises the calculated degree of lithiation for a given design capacity.
- Design ChangeSilicon oxide volume change no longer includes the Li₂O formed on first lithiation. The conversion to Li₂O is irreversible, so it contributes to the electrode’s baseline volume but not to the reversible expansion on cycling.
Studio release notes begin at version 3.0.1. Studio versions the underlying model: for changes at 3.0 and earlier, see the Open & Pro changelog.