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Charging control method, charging control device, secondary cell system, secondary cell power supply, and cell application device

A charging control method and secondary battery technology, which are applied in the direction of charging/discharging secondary batteries, battery circuit devices, secondary batteries, etc., can solve problems such as damage to safety and damage to separators, and improve safety and reliability. sexual effect

Inactive Publication Date: 2011-05-18
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, due to the precipitation of metal lithium, metal lithium becomes a foreign substance between the electrodes and damages the separator, which may cause an internal short circuit between the positive electrode and the negative electrode, which significantly damages the safety.

Method used

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  • Charging control method, charging control device, secondary cell system, secondary cell power supply, and cell application device
  • Charging control method, charging control device, secondary cell system, secondary cell power supply, and cell application device
  • Charging control method, charging control device, secondary cell system, secondary cell power supply, and cell application device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0052] refer to Figure 1A ~ Figure 3 A charge control method for controlling the state of charge of the non-aqueous electrolyte secondary battery according to the present embodiment will be described.

[0053] Figure 1A It is a perspective view showing a schematic structure of the non-aqueous electrolyte secondary battery according to Embodiment 1 of the present invention.

[0054] The nonaqueous electrolyte secondary battery 1 is a so-called unit cell and has: a peripheral device 11 which protects the periphery of the nonaqueous electrolyte secondary battery 1 main body; and an external electrode 12 which is led out to the nonaqueous electrolyte secondary battery 1 The outside of the main body of the secondary battery 1 is connected to the positive pole and the negative pole of the main body of the non-aqueous electrolyte secondary battery 1 respectively, and the temperature detection range 13 is set in the peripheral device 11 to detect the temperature of the peripheral de...

Embodiment approach 2

[0108] according to Figure 4 ~ Figure 6 A charge control computer program and a charge control device for controlling the state of charge of a non-aqueous electrolyte secondary battery according to the present embodiment will be described. In addition, since the non-aqueous electrolyte secondary battery 1 as the object of charge control is the same as that of the first embodiment, the different items will be mainly described by referring to the reference numerals as appropriate.

[0109] Figure 4 It is a flowchart showing the processing flow of the charge control computer program for controlling the state of charge of the non-aqueous electrolyte secondary battery according to Embodiment 2 of the present invention.

[0110] Figure 5 It is a block diagram showing main structural blocks of a charge control device for controlling the state of charge of a non-aqueous electrolyte secondary battery according to Embodiment 2 of the present invention.

[0111] Figure 6 It is a ...

Embodiment approach 3

[0152] according to Figure 7 The secondary battery system and the secondary battery power source using the secondary battery system according to the present embodiment will be described. In addition, the non-aqueous electrolyte secondary battery, charge control device, and power supply for charging are the same as those in Embodiment 1 and Embodiment 2, and therefore, different items will be mainly described by citing reference numerals as appropriate.

[0153] Figure 7 It is a block diagram showing main structural blocks of a secondary battery system and a secondary battery power source according to Embodiment 3 of the present invention.

[0154] A charge control device 2 is provided on the non-aqueous electrolyte secondary battery 1 to constitute a secondary battery system 30 . Furthermore, a power source 3 for charging is connected to the secondary battery system 30 , and power for charging is supplied from the power source 3 for charging to constitute a secondary batte...

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Abstract

The invention relates to a charging control method, a charging control device, a secondary cell system, a secondary cell power supply and a cell application device. The charging control method for a non-aqueous electrolyte secondary cell is a charging control method for controlling a state of charge of a non-aqueous electrolyte secondary cell that has a non-aqueous electrolyte between electrodes, a target state of charge serving as a target for stopping charging is preset in correspondence with an ambient temperature of the non-aqueous electrolyte secondary cell, and the target state of charge (e.g., 95%) for when the ambient temperature is a specific temperature (e.g., 25 DEG C. or 20 DEG C. to 30 DEG C.) that has been specified in advance is set higher compared to the target state of charge for a temperature other than the specific temperature.

Description

[0001] References to related applications / priorities [0002] This application claims the priority of Japanese Patent Application No. 2009-262926 filed on November 18, 2009. And the entire content of this priority application is incorporated into this application. technical field [0003] The invention relates to a charging control method of a non-aqueous electrolyte secondary battery, a charging control device, a secondary battery system, a secondary battery power source and a battery application device. Background technique [0004] Non-aqueous electrolyte secondary batteries (such as lithium ion batteries) with non-aqueous electrolytes have attracted attention due to the ability to obtain high voltages exceeding the electrolysis voltage of water by applying non-aqueous electrolytes, and to store large amounts of energy, etc., and are used as Power supplies for various electronic devices, power supplies for vehicles, etc. [0005] In addition, non-aqueous electrolyte sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00H01M10/05
CPCY02E60/12H02J2007/005H02J7/047H01M10/448H01M10/44Y02E60/122H02J7/0048H02J7/007194Y02E60/10H02J7/04
Inventor 松山贵洋西村直人
Owner SHARP KK
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