Battery and automobile diagnosis panel

Abstract

The embodiment of the invention relates to the automobile technical field, and discloses a battery applied to an automobile diagnosis panel. The battery comprises a battery cell, an anode interface, acathode interface, a temperature switch connected with an anode of the battery cell and the anode interface, a switch circuit connected with a cathode of the battery cell, a short-circuit protectioncircuit connected with the switch circuit and the cathode interface, and a battery protection chip provided with a detection end and an execution end. The short-circuit protection circuit is disconnected when a current between the cathode interface and the switch circuit is greater than a first preset current, and the battery protection chip makes the switch circuit be disconnected when the detection end detects that the current is greater than a second preset current or detects that a voltage is not in a preset range. A battery detection error of the embodiment of the invention is relativelysmall, and the battery cell can be prevented from working in an abnormal state.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, in particular to a battery and a diagnostic panel for automobiles. Background technique [0002] With the rapid development of automotive diagnostic technology in recent years, higher requirements have been placed on the energy density and output power of lithium batteries. Due to the material characteristics of the battery itself, there are many shortcomings. When the lithium-ion battery has undervoltage, overvoltage, overcurrent, overtemperature, etc., if it cannot be protected in time, the service life of the battery will be greatly shortened. [0003] The current protection error of the battery and its related protection circuit used in the automotive diagnostic panel is relatively large. For example, the detection error of the short circuit protection is above ±5A, and the protection effect is limited, which leads to a large loss of the service life of the batte...

AI Technical Summary

Problems solved by technology

Due to the material characteristics of the battery itself, there are many shortcomings. When the lithium-ion battery has undervoltage, overvoltage, overcurrent, overtemperature, etc., if it cannot be protected in time, the service life of the battery will be greatly shortened.

[0003] The current protection error of the battery and its related protection circuit used in the car diagnostic panel is relatively large. For example, the detection error of the short circuit protection is above ±5A, and the protection effect is limited, which leads to a large loss of the service life of the battery cell in the rechargeable battery.

Images