Supercharge Your Innovation With Domain-Expert AI Agents!

Evaluation method for current collecting capacity of current collecting structure of lithium thionyl chloride battery

A lithium sub-battery and current collection technology, which is applied in the direction of fluid resistance measurement, electricity measurement, and measurement devices, can solve the problems of not being able to directly measure the current transfer capacity and the lack of quantifiable methods for the quality control of current collection structure design, and achieve high operability effect

Pending Publication Date: 2022-03-01
武汉昊诚锂电科技股份有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] None of the current-collecting structures described in the above schemes can directly measure the current transfer capability of the internal structure of the battery in the actual battery, which makes the design and quality control of the current-collecting structure of the battery lack a corresponding quantifiable method. Therefore, the design and In the manufacturing process, there is an urgent need for a method that can simulate and measure the actual current transfer capability of the current-collecting structure inside the battery, and form specific data accumulation, which can also provide guidance for future battery design

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
  • Evaluation method for current collecting capacity of current collecting structure of lithium thionyl chloride battery
  • Evaluation method for current collecting capacity of current collecting structure of lithium thionyl chloride battery
  • Evaluation method for current collecting capacity of current collecting structure of lithium thionyl chloride battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a method for evaluating the current collecting capacity of a lithium sub-battery current collecting structure, the flow chart of the evaluation method is as follows figure 1 As shown, the evaluation method specifically includes the following steps:

[0038] (1) In an environment of 20°C, configure a sodium chloride solution with a concentration gradient, use a conductivity meter to measure the conductivity of the above sodium chloride aqueous solution, and record that the concentration of the sodium chloride solution is shown in Table 1 below :

[0039] Table 1

[0040]

[0041] (2) Press the ER 26500 lithium sub-battery standard casing with the corresponding standard cover group, inject the above-mentioned sodium chloride solution through the injection hole in sequence, the volume of the injected sodium chloride solution is 15ml, use a clamp to ensure The battery is placed vertically, and the two ends of the fixture are connected to the wi...

Embodiment 2

[0050] This embodiment provides a method for evaluating the current collecting capacity of a lithium sub-battery current collecting structure, and the evaluating method includes the following steps:

[0051] (1) In an environment of 20°C, configure a sodium chloride solution with a concentration gradient, use a conductivity meter to measure the conductivity of the above sodium chloride aqueous solution, and record that the concentration of the sodium chloride solution is shown in Table 3 below :

[0052] table 3

[0053]

[0054] (2) Press the ER 26500 lithium sub-battery standard casing with the corresponding standard cover group, inject the above-mentioned sodium chloride solution through the injection hole in sequence, the volume of the injected sodium chloride solution is 15ml, use a clamp to ensure The battery is placed vertically, and the two ends of the fixture are connected to the wires, and the positive and negative poles of the battery case are connected. In an ...

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

No PUM Login to View More

Abstract

The invention provides a lithium thionyl chloride battery current collection structure current collection capability evaluation method, which comprises: (1) preparing a series of sodium chloride solutions with concentration gradients, and determining the conductivity of the sodium chloride solutions; (2) respectively injecting the sodium chloride solution into a lithium thionyl chloride battery shell, respectively connecting a positive electrode and a negative electrode of the battery shell with leads, and electrifying to test a resistor; (3) respectively corresponding the conductivity obtained in the step (1) to the resistance obtained in the step (2), and drawing a fitting curve by taking the conductivity as an abscissa and the resistance as an ordinate; and (4) measuring the resistance of the current collecting structure of the lithium thionyl chloride battery to be measured, and drawing a fitting curve by adopting the conductivity of the sodium chloride obtained in the step (1) to obtain the current collecting effect of the current collecting structure of the lithium thionyl chloride battery. And the influence of individual difference on the whole result can be avoided to the greatest extent.

Description

technical field [0001] The invention belongs to the field of lithium-sub-battery, and relates to a method for evaluating the current-collecting capacity of a lithium-sub-battery current-collecting structure. Background technique [0002] Lithium sub-battery is a liquid lithium primary battery with thionyl chloride as the electrolyte solvent and cathode active material. It is the type with the highest specific energy and the widest operating temperature range among commercial battery products. At the same time, the characteristics of liquid batteries make it Voltage is stable over 90% of full battery capacity usage. Today, lithium-sub-batteries are widely used in various smart meters such as electric meters, water meters, and gas meters, and have also been rapidly adopted in the fields of automotive tire pressure monitoring systems (TPMS), radio frequency identification (RFID), and satellite positioning devices (GPS). App promotion. The continuous application and developmen...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R27/02G01R27/22
CPCG01R31/00G01R27/02G01R27/22
Inventor 刘耘于力阮红林周敬
Owner 武汉昊诚锂电科技股份有限公司
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