Unlock instant, AI-driven research and patent intelligence for your innovation.

Lithium-thionyl chloride battery positive electrode and powder method

A thionyl chloride battery and positive electrode technology, applied in the direction of electrode carrier/current collector, etc., can solve the problems of difficulty in controlling the ductility of polytetrafluoroethylene, increasing process complexity, and high cost, achieving low cost and overcoming uneven mixing. , the effect of easy operation

Active Publication Date: 2021-11-19
武汉昊诚锂电科技股份有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology uses a high-speed mixer to mix the powder evenly, but its energy consumption is high, the cost is high, and it is also difficult to control the extensibility of PTFE, which increases the complexity of the subsequent process

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
  • Lithium-thionyl chloride battery positive electrode and powder method
  • Lithium-thionyl chloride battery positive electrode and powder method
  • Lithium-thionyl chloride battery positive electrode and powder method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Lithium-thionyl chloride battery positive electrode and powder method, and the powder formula is: acetylene black: 8Kg, polytetrafluoroethylene emulsion: 1.0Kg, copper powder: 1.05Kg, isopropanol: 11Kg, deionized water: 25Kg.

[0040] Its and powder method comprises the steps:

[0041] Step 1: Add the acetylene black of the stated weight into the blender and stir at room temperature of 25±5°C and humidity of 50%±20%;

[0042] Step 2: Mix the polytetrafluoroethylene emulsion, isopropanol and deionized water according to the weight to obtain a mixed solution, take half the weight of the mixed solution and add it to a blender, stir and mix to obtain a mixed powder;

[0043] Step 3: After stirring for 15 minutes, release about 20% of the total amount of mixed powder from the outlet at the bottom of the mixer.

[0044] Step 4: Add the metal powder of the stated weight into the blender evenly from the inlet of the blender, then add the mixed powder released in step 3 from th...

Embodiment 2

[0047] Lithium-thionyl chloride battery positive electrode and powder method, and the powder formula is: acetylene black: 10Kg, polytetrafluoroethylene emulsion: 1.5Kg, copper powder: 1.00Kg, isopropanol: 10Kg, deionized water: 20Kg.

[0048] Its kneading powder method is with embodiment 1.

Embodiment 3

[0050] Lithium-thionyl chloride battery positive electrode and powder method, and the powder formula is: acetylene black: 12Kg, polytetrafluoroethylene emulsion: 2.0Kg, copper powder: 0.95Kg, isopropanol: 7Kg, deionized water: 15Kg.

[0051] Its kneading powder method is with embodiment 1.

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a lithium-thionyl chloride battery cathode and powder method. It comprises the following steps: under the condition that the room temperature is 25±5°C and the humidity is 50%±20%, adding said weight of acetylene black into a blender for stirring; adding said weight of polytetrafluoroethylene emulsion, isopropyl Alcohol and deionized water are mixed to obtain a mixed solution, and half the weight of the mixed solution is added to a powder blender, stirred and mixed to obtain a mixed powder; after stirring for 15 minutes, about 20% of the total amount of mixed liquid is released from the outlet at the bottom of the blender Powder: Add the metal powder of the stated weight into the blender evenly from the inlet of the blender, then add the mixed powder in step 3 from the inlet of the blender, and finally add the remaining half of the weight of the blender liquid; mix again and stir for 15 minutes to complete the entire kneading process. The invention has the advantages of uniform mixing of materials, better uniformity of discharge platform and capacity.

Description

technical field [0001] The invention relates to the technical field of a lithium-thionyl chloride battery, more specifically, it relates to a lithium-thionyl chloride battery positive electrode and a powder method. Background technique [0002] Lithium thionyl chloride (Li / SOCl2) battery is the battery with the highest specific energy in the practical application battery series, and the specific energy can reach 590W·h / kg and 1100 (Wh / dm3). At the same time, it has the advantage of long storage life, and is currently widely used in various smart instruments, meters and some smart homes. The positive carrier is a porous structure carrier made of acetylene black and metal powder mixed with polytetrafluoroethylene as a binder. The traditional mixing method is to first pour all the acetylene black and metal powder into the mixing machine for mixing, then mix the liquid with PTFE emulsion, and finally mix and discharge. In this method, because the density of acetylene black and...

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 Patents(China)
IPC IPC(8): H01M4/66
CPCY02E60/10
Inventor 柳鸣翔陈林杨全喻赤平夏润胡凯旋
Owner 武汉昊诚锂电科技股份有限公司