Kilogram-force

Example

Use in Lemonergy

Use consistent units and cell/pack basis.

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Connected concepts

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

Prismatic cell

A cell in a rigid rectangular metal case, holding either a flattened jelly roll or stacked sheets. Large prismatic cells pack tightly into battery packs. Large prismatic cells are often named by thickness, width and height in millimetres, so a 71173207 cell is about 71 × 173 × 207 mm.

Stack pressure

Pressure applied to a cell stack, in production or in use, to keep its layers in contact. Solid-state cells depend on it, because ions can only cross where two solids touch. Large prismatic lithium-ion and sodium-ion cells are also cycle-tested at a stated pressure or fixture force, such as 0.2 MPa or 300 kgf, because swelling against the fixture affects life.

Swelling

Growth in a cell’s thickness, reversibly as the electrodes expand on charge and irreversibly as gas and SEI accumulate. Packs allow for it with compression pads, and a sudden swell in service is a warning sign.

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. The International System of Units (SI), 9th edition

   Bureau International des Poids et Mesures · 2026

   Topic background · Definitions of SI units and coherent derived units; 2026 revision.