A solid-state lithium battery based on a spiral heating rod, its heating device, and its heating control method

Abstract

The invention discloses a solid-state lithium battery based on a spiral heating rod, its heating device, and a heating control method, including a solid-state lithium battery and a heating rod assembly. The solid-state lithium battery consists of a metal casing, a battery insulating film, a positive active material, a solid electrolyte, Negative electrode active material, negative electrode current collector, positive electrode current collector, heating rod components include: spiral heating rod, ceramic thread structure, insulating heat transfer medium, spiral heating rod positive wire, spiral heating rod negative wire, heating rod interface, replaceable spiral The heating rod is inserted into the solid-state battery and energized to heat the solid-state battery directly from the inside. The solid-state lithium battery used in the present invention effectively avoids the thermal runaway accidents that may be caused by the backup power supply for rail transit under high-temperature overheating or other extreme working conditions, and directly configures a heating system for the solid-state battery monomer, which improves the charging performance of the solid-state battery at room temperature. The defect of the reduced discharge performance, and internal heating directly improves the heating efficiency compared to surface heating.

Description

technical field [0001] The invention relates to the field of battery thermal management, in particular to a solid-state lithium battery for rail vehicles based on an internal spiral heating rod, a heating device and a heating control method thereof. Background technique [0002] With the rapid development of my country's rail transportation, rail transportation has become the main force of modern transportation. It not only has the characteristics of fast speed and large transportation volume, but also is more comfortable and convenient. In addition, the safety of rail transit is more prominent than other means of transportation. Once fatal failures occur in rail transit technical equipment, it will often cause major traffic accidents, and even cause casualties, causing huge social impact. Every part of the traffic has put forward higher security requirements. The backup power supply for rail transit is a power device that can be used to make rail vehicles start normally an...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a solid-state lithium battery based on internal spiral heating rods for rail vehicles, which solves the problem of thermal runaway caused by overheating and extreme conditions of existing liquid lithium batteries for the high safety requirements of rail vehicles problems and performance degradation caused by low electrolyte conductivity at room temperature for solid-state batteries

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