Automobile starting power supply using lithium iron phosphate battery

Abstract

The invention relates to an automobile starting power supply using a lithium iron phosphate battery. The automobile starting power supply is connected with an automobile electric control system and supplies electric energy to the automobile electric control system. The automobile starting power supply comprises a battery pack and a protecting plate which is positioned between the battery pack and the automobile electric control system and plays a role in protection, wherein the battery pack is the lithium iron phosphate power battery. The lithium iron phosphate power battery has no environmental pollution problem and has good cyclic service life; the battery pack has low self discharge, good high-temperature performance and better environmental adaptability, can be quickly charged and has high available capacitance so that the working time and service life of the battery pack are greatly improved; because of a long stable working platform, the battery has stable voltage during working and high instantaneous discharge current, can meet the requirement of low-temperature cold start, and has the circuit protecting design; and when an automobile cannot be ignited and started due to insufficient electric energy, the battery is pressed to recover so as to start an engine, and particularly has better effect in cold winter.

Description

technical field [0001] The invention relates to an automobile starting power supply, in particular to an automobile starting power supply using lithium iron phosphate as a power battery. Background technique [0002] In the existing market, lead-acid batteries are used as the realization scheme of the car starting power supply, but there are obvious disadvantages in the current use of lead-acid batteries: 1. Lead-acid batteries cause serious environmental pollution 2. The life of lead-acid batteries is short, about two years Need to replace the battery 3. The self-discharge of the lead-acid battery is large. Often the car stops for a few days, the battery will be out of power, and the generator cannot be started. 4. Under high temperature conditions, the self-discharge is large, the water loss rate is high, and the battery life is shortened The charging time is slow, and it takes about 6 hours for the battery to be fully charged; the available capacity is small, and the avai...

AI Technical Summary

Problems solved by technology

[0002] In the existing market, lead-acid batteries are used as the realization scheme of the car starting power supply, but there are obvious disadvantages in the current use of lead-acid batteries: 1. Lead-acid batteries cause serious environmental pollution 2. The life of lead-acid batteries is short, about two years Need to replace the battery 3. The self-discharge of the lead-acid battery is large. Often the car stops for a few days, the battery will be out of power, and the generator cannot be started. 4. Under high temperature conditions, the self-discharge is large, the water loss rate is high, and the battery life is shortened The charging time is slow, and it takes about 6 hours for the battery to be fully charged; the available capacity is small, and the available capacity is 50-60% of the rated capacity, which often shows that the car's power is insufficient, and it cannot drive the normal work of other electrical appliances in the car. 6. Working voltage Fluctuating and unstable, resulting in insufficient fuel combustion, large oil consumption, and high exhaust carbon emissions

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