Standard charge current

Example

Use in Lemonergy

Separate regulation from availability.

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.

C-rate

Current divided by nominal capacity, in reciprocal hours. 1C on a 20 Ah cell is 20 A; 2C is 40 A. C-rate lets you compare loads on cells of different sizes. The C here is not the coulomb, whose symbol is also C.

CC-CV charging

The standard lithium-ion charge protocol: constant current until the cell reaches its upper cutoff voltage, then that voltage held constant while the current tapers. The charge ends when the current falls to a set fraction, often C/20.

Continuous and peak current

The current a cell can supply indefinitely without exceeding its temperature limit, and the higher current it can supply for a stated few seconds. Peak ratings are only valid for the duration and starting temperature given.

Datasheet

The manufacturer’s specification sheet for a cell: nominal capacity, nominal voltage, voltage window, continuous and peak currents, operating temperatures, dimensions, mass and cycle life, each tied to the test conditions it was measured under.

Fast charging

Charging intended to replenish a specified amount of energy or state of charge in a short time. There is no universal C-rate threshold: performance depends on cell chemistry, temperature, starting state and power limits. High current can increase heating and lithium-plating risk, requiring appropriate limits.

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. Lithium-ion battery fast charging: A review

   Anna Tomaszewska et al. · eTransportation · 2019

   Topic background · CC-CV and alternative charging protocols, transport limitations, degradation and thermal implications; results depend on cell and test conditions. Software behavior is documented separately in Lemonergy block references.