Battery Thermal Insulation for Low-Temperature Startup
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Solution Overview
Problem
Electronic devices face power cut-off issues during system startup at low temperatures due to high battery impedance, which is exacerbated by reduced ionic conductivity and increased anode electrolyte resistance, leading to inefficient battery performance.
Innovation Solution
Incorporating a thermal insulation element to retain heat generated by the battery during startup, along with a temperature monitoring module and power management adjustments, such as adjusting discharge current and activating electrical heaters or supercapacitors, to maintain optimal operating conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the battery operates at high discharge rate during startup, then the power delivery meets the startup demand, but the anode electrolyte resistance becomes dominant and triggers power cut-off due to high battery impedance
Solution Approach 1:
The thermal insulation element is installed around the battery before startup occurs, creating a preparatory thermal management structure that will retain heat during the startup process. This preliminary action prevents the battery from operating in a cold state, thereby reducing electrolyte resistance before high discharge rates are demanded during startup.
2Reliability
If thermal insulation is applied to retain battery heat, then ionic conductivity is improved and power cut-off is prevented, but device complexity increases due to additional thermal management components
Solution Approach 1:
The thermal insulation element is implemented as a thin-walled cylindrical structure that can be wrapped around the battery. This thin-film approach provides effective thermal insulation to prevent heat dissipation and improve ionic conductivity, while maintaining a compact and simple overall device structure without adding significant complexity.
3Temperature
If the battery is insulated from heat dissipation during startup, then the operating temperature is maintained and performance is improved, but heat accumulation may occur at higher temperatures
Solution Approach 1:
The thermal insulation element's effectiveness is dynamically controlled through temperature-dependent behavior. At low temperatures during startup, the insulation retains heat to improve performance. At higher temperatures, the system can activate cooling mechanisms or the insulation effect naturally diminishes, allowing heat dissipation when needed to prevent harmful heat accumulation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables successful startup of electronic devices at low temperatures by preventing cut-off voltage triggers and improving battery performance by maintaining heat and adjusting power settings dynamically.
Implementation Method 1
a thermal insulation element configured to insulate heat that the battery generates
Implementation Method 2
heat that the battery generates
Data Source
AI summary
Apparatuses, systems, devices, and methods for power management during system startup at low temperatures are disclosed. An apparatus includes a battery for an electronic device. The battery includes one or more cells. The apparatus includes a thermal insulation element configured to insulate heat that the battery. The thermal insulation element is coupled to the battery to prevent at least a portion of the heat that the battery generates from being dissipated from the battery during startup of the electronic device.