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A kind of high-load lithium-manganese battery and preparation method thereof

A lithium-manganese battery, high-load technology, applied to the electrodes of primary batteries, battery electrodes, non-aqueous electrolyte batteries, etc., can solve problems such as affecting the use of the instrument, the instrument cannot be started, and the valve can be opened, and achieves reduction of material types and current conduction. Better outcomes, lower risk outcomes

Active Publication Date: 2016-03-16
武汉昊诚锂电科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the load capacity of the battery is not enough, it will seriously affect the use of the instrument, and even the phenomenon that the instrument cannot be started or the valve will open.
At the same time, the transmission and reception of military communication stations requires batteries to provide high-power pulses, which also poses a severe test to the load capacity of batteries.

Method used

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  • A kind of high-load lithium-manganese battery and preparation method thereof
  • A kind of high-load lithium-manganese battery and preparation method thereof
  • A kind of high-load lithium-manganese battery and preparation method thereof

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Effect test

Embodiment 1

[0026] like figure 2 As shown, the process for preparing high-load lithium-manganese batteries is as follows:

[0027] 1. Weigh 40kg of electrolytic manganese dioxide powder, bake in a high-temperature oven at 380±5°C for 12 hours, then cool for later use; the purity of the manganese dioxide is 92%;

[0028] 2. Inject 2kg of isopropanol and 15kg of deionized water into the high-speed mixing granulator. After adding the liquid materials, turn on the low speed gear and stir for more than 30s;

[0029] 3. After the stirring is stopped, add 2.7kg of conductive carbon black to the granulator. After adding the conductive agent, first keep stirring at low speed for 30 seconds, then change the stirring speed to high speed and stir for more than 3 minutes;

[0030] 4. After the stirring of the conductive agent is stopped, add the prepared electrolytic manganese dioxide powder into the granulator, the stirring speed is still at high speed, and stir for more than 5 minutes;

[0031] 5...

Embodiment 2

[0033] The process for preparing high-load lithium-manganese batteries is as follows:

[0034] 1. Weigh 60kg of electrolytic manganese dioxide powder, bake it in a high-temperature oven at 380±5°C for 12 hours, and then cool it for later use; the purity of the manganese dioxide is 92%;

[0035] 2. Inject 4kg of isopropanol and 25kg of deionized water into the high-speed mixing granulator. After adding the liquid materials, turn on the low speed gear and stir for more than 30s;

[0036] 3. After the stirring is stopped, add 5kg of conductive carbon black to the granulator. After adding the conductive agent, first maintain the low-speed stirring for 30s, then change the stirring speed to high-speed and stir for more than 3 minutes;

[0037] 4. After the stirring of the conductive agent is stopped, add the prepared electrolytic manganese dioxide powder into the granulator, the stirring speed is still at high speed, and stir for more than 5 minutes;

[0038] 5. After the stirring...

Embodiment 3

[0040] The process for preparing high-load lithium-manganese batteries is as follows:

[0041] 1. Weigh 65kg of electrolytic manganese dioxide powder, bake it in a high-temperature oven at 380±5°C for 12 hours, and then cool it for later use; the purity of the manganese dioxide is 92%;

[0042] 2. Inject 4kg of isopropanol and 20kg of deionized water into the high-speed mixing granulator. After adding the liquid materials, turn on the low speed gear and stir for more than 30s;

[0043] 3. After the stirring is stopped, add 3kg of conductive carbon black to the granulator. After adding the conductive agent, first maintain the low-speed stirring for 30s, then change the stirring speed to high-speed and stir for more than 3 minutes;

[0044] 4. After the stirring of the conductive agent is stopped, add the prepared electrolytic manganese dioxide powder into the granulator, the stirring speed is still at high speed, and stir for more than 5 minutes;

[0045] 5. After the stirring...

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Abstract

The invention provides a high load Li-Mn battery and a preparation method thereof. The high load Li-Mn battery comprises an anode and a cathode, and is characterized in that anode raw materials are prepared from the following components by weight percentage: 60-65% of manganese dioxide, 3-5% of conductive carbon black, 2-4% of isopropyl alcohol, 4-8% of ptfe emulsion, and the balance of deionized water. By the adoption of the Li-Mn battery, constant current discharge capacity at a low temperature is improved, constant current discharge capacity at a high current is also improved, and meanwhile other properties of the battery are not affected.

Description

technical field [0001] The invention relates to the field of lithium-manganese batteries, in particular to a high-load lithium-manganese battery, and also relates to a preparation method of the high-load lithium-manganese battery. Background technique [0002] Disposable lithium-manganese batteries are representative products of lithium batteries. They are one of the earliest products developed and commercialized. They are widely used in smart meters, alarms, circuit board power supplies, and even in the field of military supplies, such as communication radio stations and ignition controllers. etc. will also be used. [0003] In these fields of use, some of them have high requirements on the load capacity of the battery. For example, the smart meters used in northern my country are used at 10°C or below for a long time, and once the temperature is lower than 10°C, the discharge capacity of the battery will be damaged. Affected by the electrode reactivity will gradually decre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/06H01M4/50H01M4/62H01M6/14
CPCH01M4/50H01M4/625H01M6/14
Inventor 夏青周敬
Owner 武汉昊诚锂电科技股份有限公司
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