Check patentability & draft patents in minutes with Patsnap Eureka AI!

Thermal battery containing manganese fluoride

A manganese fluoride, thermal battery technology, applied in battery electrodes, battery pack components, circuits, etc., can solve the problems such as no introduction of multi-layer diaphragm, no introduction of high temperature solid fluorine conversion positive electrode functional agent, etc. The effect of improving overall stability and discharge performance, improving overall conductivity, and high application value

Active Publication Date: 2022-08-02
TIANJIN UNIV
View PDF21 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in manganese-containing fluoride thermal batteries, there is no introduction of multi-layer separators, nor the introduction of high-temperature fluorine-fixed conversion positive electrode functional agents in manganese-containing fluoride thermal batteries.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermal battery containing manganese fluoride
  • Thermal battery containing manganese fluoride
  • Thermal battery containing manganese fluoride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] with MnF 3 As the positive electrode active material, nickel, carbon nanotubes, LiCl-KCl and magnesium oxide with a mass ratio of 5:1:55:39 were used as the first functional transition layer, and magnesium oxide, LiF-LiCl with a mass ratio of 40:60 were used as the first functional transition layer. -KF-LiNO 3 -Li 2 SO 4 -Li 2 CO 3 As the second mass transfer conductive layer, a lithium-boron alloy was used as the negative electrode material to prepare and assemble a manganese-containing fluoride thermal battery, such as figure 1 (marked with serial number 5). The no-load cell voltage is 3.46V, the activation time is 0.66s, the cut-off voltage is 2.5V, 110mA / cm 2 The working time is 152s under the current density discharge condition, such as figure 2 shown. at 1A / cm 2 Under the current density, the internal resistance is about 18mΩ, such as image 3 shown.

Embodiment 2

[0040] with MnF 3 As the positive electrode active material, the mass ratio is 6:0.1:54.9:39 cobalt, graphene, LiCl-LiCO 3 , SiO 2 As the first functional transition layer, MgO, LiF-LiCl-KBr-Li with a mass ratio of 45:55 2 SO 4 As the second mass transfer conductive layer, a lithium-boron alloy was used as the negative electrode material to prepare and assemble a manganese-containing fluoride thermal battery. The no-load cell voltage is 3.42V, the activation time is 0.59s, the cut-off voltage is 2.5V, 110mA / cm 2 The working time is 166s under the discharge condition of the current density. at 1A / cm 2 Under the current density, the internal resistance is about 19mΩ.

Embodiment 3

[0042] with MnF 3 As the positive electrode active material, iron, LiF-LiCl-LiBr, and Al in a mass ratio of 8:52:40 were used. 2 O 3 As the first functional transition layer, MgO and LiF-NaF-KF-LiCl with a mass ratio of 30:70 were used as the second mass transfer conductive layer, and lithium boron alloy was used as the negative electrode material to prepare and assemble a manganese-containing fluoride thermal battery. The no-load cell voltage is 3.65V, the activation time is 0.71s, the cut-off voltage is 2.5V, 110mA / cm 2 The working time is 130s under the discharge condition of the current density. at 1A / cm 2 Under the current density, the internal resistance is about 18mΩ.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Internal resistanceaaaaaaaaaa
Internal resistanceaaaaaaaaaa
Internal resistanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a thermal battery containing manganese fluoride, which is composed of a positive electrode containing manganese fluoride as an active material, a multi-layer diaphragm, a lithium alloy negative electrode, a heating assembly and other auxiliary assemblies, and the multi-layer diaphragm is a multi-layer structure at least composed of a first functional transition layer and a second mass transfer conductive layer with different chemical compositions. The first functional transition layer is composed of a high-temperature solid fluorine conversion positive electrode functional agent, a carbonaceous conductive agent, a high-temperature ionic conductive agent and a high-temperature chemical inert oxide according to a certain proportion, and the second mass transfer conductive layer is composed of a high-temperature chemical inert oxide and a high-temperature ionic conductive electrolyte. The no-load monomer voltage of the thermal battery containing manganese fluoride can reach 3.0-3.7 V.

Description

technical field [0001] The invention belongs to the technical field of thermal batteries, and in particular relates to a manganese-containing fluoride thermal battery. Background technique [0002] The thermal battery uses molten salt as the electrolyte and uses a heat source to melt and activate the storage type high-temperature molten salt battery. The thermal battery can be discharged with high current pulse or constant current, has higher specific energy and specific power, and has the characteristics of wide operating environment temperature, long storage time without maintenance, rapid and reliable activation, simple process, strong environmental adaptability, etc. Rapidly developed into an ideal power source for modern weapons. [0003] The core component of a thermal battery is a single cell composed of a separator, a negative electrode and a positive electrode. The diaphragm material is a solid molten salt and a binder, which not only acts as a conductive medium, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M50/449H01M50/431H01M50/489H01M50/497H01M6/36H01M4/58H01M4/40
CPCH01M6/36H01M4/582H01M4/405H01M50/449H01M50/431H01M50/489H01M50/497Y02E60/10
Inventor 胡文彬田千秋韩晓鹏张士雨董秋江郭灏唐立成
Owner TIANJIN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com