Instrumented cell

Example

Use in Lemonergy

Record specimen, state, instrument, temperature and timing.

This is a reference concept. No executable Lemonergy block has been verified for this term.

Connected concepts

Related concepts from the knowledge graph. Connections show context, not cause and effect. Hover or focus a linked term for its definition.

Jelly roll

Electrodes and separators wound together into a spiral. It is the inside of a cylindrical cell and of many prismatic cells; large pouch cells usually use stacked sheets instead.

Reference electrode

An electrode of stable, known potential against which another is measured. In lithium-ion work it is a piece of lithium metal, which defines the Li/Li⁺ scale; outside it the standard hydrogen electrode is the primary reference.

Temperature sensor

Usually a negative-temperature-coefficient thermistor glued to a busbar or cell surface, with a few per module. Because sensors read the surface, the hottest point inside a cell can run several degrees higher than the BMS sees.

Thermal model

A model of cell temperature: at its simplest one thermal mass with heat generation inside and convection outside, at its most detailed a 3D simulation of the pack. Temperature feeds back into every rate, so electrical and thermal models are usually solved together.

Three-electrode cell

A full cell with an added reference electrode, so the potential of each working electrode can be tracked separately during cycling. It reveals, for instance, when the graphite potential drops below 0 V and plating begins.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. Battery Test Manual For Electric Vehicles, Revision 3

   Jon P. Christopherson · Idaho National Laboratory · 2015

   Topic background · Performance characterization, pulse resistance/power, life testing and reference performance tests; historical 2015 edition.