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System for operating and activating lithium ion battery for intelligent home

A lithium-ion battery, smart home technology, applied in secondary batteries, battery circuit devices, secondary battery repair/maintenance, etc., can solve problems such as easy fire and explosion, prolong battery life, endanger the safety of electrical equipment, etc. The effect of preventing fire or explosion, improving usage, and protecting normal usage

Inactive Publication Date: 2017-03-15
蔡秋华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Smart home (English: smart home, home automation) has become a necessity in people's lives, and it is more and more widely used in human life. Most of the batteries in smart homes are used to provide power for signal generators or receivers in smart homes. The working current is very low, and it has been stored for a long time. Under such operating conditions, the battery passivation phenomenon is serious, the internal resistance increases, the capacity decays seriously, and the cycle life is shortened.
However, most of the charging methods in the prior art are constant current charging, which does not take into account the specific conditions of the battery. When the battery condition deteriorates, it is easy to catch fire and explode during the charging process, endangering the safety of electrical equipment.
At the same time, it is not found in the prior art that the battery activation program is executed according to the battery condition during battery use to prolong the service life of the battery.

Method used

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  • System for operating and activating lithium ion battery for intelligent home

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] According to the system of the present invention, wherein the working current of the battery is 0.01C, the charging current in the first constant current mode is 0.3C, and when the temperature detector detects that the temperature of the battery rises above the first predetermined value, the charging current is reduced to 0.1C , the first predetermined value is 45 degrees Celsius; when the battery temperature drops below the first predetermined value, continue charging in the first constant current mode; after charging to the cut-off voltage, stop charging, and the cut-off voltage is 4.2V; The above-mentioned activation mode includes performing pulse-type alternate charge and discharge with a current of 1C, the charge time is 5ms, the discharge time is 5ms, and the interval is 10s, and the duration of the pulse-type alternate charge-discharge is 20min; charging to the cut-off voltage in current mode, and repeating the pulse-type alternate charging and discharging process...

Embodiment 2

[0021] According to the system of the present invention, wherein the working current of the battery is 0.01C, the charging current in the first constant current mode is 0.8C, and when the temperature detector detects that the temperature of the battery rises above the first predetermined value, the charging current is reduced to 0.2C, the first predetermined value is 55 degrees Celsius; when the battery temperature drops below the first predetermined value, continue charging in the first constant current mode; after charging to the cut-off voltage, stop charging, the cut-off voltage is 4.4V ; The activation mode includes performing pulse-type alternate charging and discharging with a current of 2C, the charging time is 10ms, the discharging time is 10ms, and the interval is 20s, and the duration of the pulse-type alternate charging and discharging is 60min; The second constant current mode charges to the cut-off voltage. During the second constant current mode charging process,...

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Abstract

The invention provides a system for operating and activating a lithium ion battery for intelligent home. The inventor found that the internal resistance of the battery is gradually increased along with the growth of using time of the battery, the raising condition of the temperature is obvious in a battery charging process, and a high temperature environment is one of principal factors of causing battery attenuation, so that the temperature of the battery is detected by the inventor in the charging process, and charging for the battery in a normal temperature range is guaranteed; moreover, an activation mode is arranged, when the battery condition is deteriorated, the battery is reactivated through the activation mode, the internal environment of the battery is adjusted through pulse current, the activity of positive and negative electrodes is activated, the internal resistance is reduced, and the battery condition is improved, so that the purpose of prolonging the service life of the battery is reached; and moreover, the system also comprises safety measures, and other components of intelligent home are prevented from being damaged by excess temperature or fire of the battery.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to an operation activation system for lithium-ion batteries used in smart homes. Background technique [0002] Smart home (English: smart home, home automation) has become a necessity in people's lives, and it is more and more widely used in human life. Most of the batteries in smart homes are used to provide power for signal generators or receivers in smart homes. The working current is very low, and it has been stored for a long time. Under such operating conditions, the battery is passivated, the internal resistance increases, the capacity decays seriously, and the cycle life is shortened. However, most of the charging methods in the prior art are constant current charging, which does not take into account the specific conditions of the battery. When the battery condition deteriorates, it is easy to catch fire and explode during the charging process, endangering the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/48H01M10/42H01M10/0525
CPCH01M10/0525H01M10/4257H01M10/486H01M2010/4271Y02E60/10
Inventor 蔡秋华
Owner 蔡秋华
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