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Comparación de Baterías: LiFePO4, Li-Ion y Plomo/ácido

¿Cómo es posible que una batería de litio tenga una capacidad (Ah = amperios-hora) igual a aproximadamente 1/3 de una batería de plomo / ácido equivalente? ¿Cómo es posible que, a pesar de esta menor capacidad, su corriente de arranque (CA = amperio de arranque) sea un 50% más alta que las baterías de plomo-ácido?

Comparativa batterie: LiFePO4, Li-Ion e Piombo/Acido

Para comprender estos datos, reportados en las tablas y en el gráfico, es necesario introducir los conceptos de densidad de energía (Wh / L) y corriente máxima de descarga. De hecho, las baterías LiFePO4 tienen una densidad de energía hasta cinco veces mayor que las baterías de plomo / ácido equivalentes.

	Plomo/ Ácido	LiCo (Litio Cobalto) / Li-Ion	LiFePO4 BC LITHIUM
Tensión nominal [V]	2,1	3,6/3,7	3,2
Densidad de energia [Wh/L]	Media	Alta	Alta
Energía específica [Wh/Kg]	Media	Alta	Alta
Corriente de descarga max. (Discharge rate) [C]	15	N.D.	50
Seguridad	Discreta (presencia de materiales tóxicos)	Baja (riesgo de fuego y explosiones)	Excelente (sin riesgo de explosión de fuego)
Ciclos de vida	> 400	> 500	> 2000
Producto Respetuoso del medio ambiente	No	No	SÌ

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