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Discharge control method and rechargeable battery charge control method of rechargeable battery and rechargeable battery

A rechargeable battery and discharge control technology, which is applied in the direction of secondary battery charging/discharging, cylindrical case battery/battery, secondary battery manufacturing, etc., can solve the problems of battery performance degradation, battery power reduction, and complex structure of rechargeable batteries. Achieve the effect of increasing the volume specific energy and simplifying the connection structure

Pending Publication Date: 2021-02-23
SHENZHEN MAIGESONG ELECTRICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the controller arrangement of existing rechargeable batteries is limited by the control mode of the existing charging and / or discharging circuit, causing the controllers of existing rechargeable batteries to be mostly arranged at the positive electrode end of the lithium-ion battery cell, otherwise, it will lead to The structure of the rechargeable battery is complex, which affects the volume specific energy of the lithium-ion battery, resulting in a decrease in battery power and battery performance

Method used

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  • Discharge control method and rechargeable battery charge control method of rechargeable battery and rechargeable battery
  • Discharge control method and rechargeable battery charge control method of rechargeable battery and rechargeable battery
  • Discharge control method and rechargeable battery charge control method of rechargeable battery and rechargeable battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Implementation 1: the embodiment of soft pack lithium ion battery (i.e. soft pack lithium ion battery rechargeable battery)

[0086] Taking the rechargeable battery 100a composed of soft-packed lithium-ion batteries as an example, the structural features of the disclosed battery are described. This embodiment is suitable for using soft-packed lithium-ion batteries to form different types of rechargeable batteries, for example, AA batteries, AA batteries, and AA batteries. battery, 3rd battery, etc.

[0087] refer to Figure 1 to Figure 8 , the rechargeable battery 100a includes a soft pack lithium-ion battery cell 200a and a controller 400a for controlling charging and discharging.

[0088] Specifically, the rechargeable battery 100a (i.e., a soft pack lithium-ion battery) includes a cylindrical battery case 110a, a lithium-ion cell 200a installed in the battery case 110a, and a positive electrode disposed at one end of the battery case 110a. An electrode cap and a co...

Embodiment 2

[0110] Implementation 2: An example of an aluminum-cased lithium-ion battery

[0111] Taking the embodiment of the rechargeable battery 100b composed of aluminum-cased lithium-ion cells as an example, the structural features of the aluminum-cased lithium-ion battery of the present disclosure are described. This embodiment is suitable for rechargeable batteries of different types composed of aluminum-cased lithium-ion cells, such , No. 5 battery, No. 7 battery, No. 3 battery, etc.

[0112] Such as Figure 9 and Figure 10 As shown, the rechargeable battery 100b (that is, the aluminum-cased lithium-ion battery) is composed of an aluminum-cased lithium-ion cell 200b, and the internal structure of the rechargeable battery 100b is as follows Figure 11 As shown, the assembly relationship is as Figure 12 shown.

[0113] combine Figure 13 and Figure 14 As shown, the rechargeable battery 100b (that is, an aluminum-cased lithium-ion battery) includes a cylindrical battery case...

Embodiment 3

[0141] Implementation 3: The embodiment of direct sealing lithium-ion battery

[0142] Such as Figure 18 , Figure 19 As shown, the rechargeable battery 100c adopts a direct-sealed lithium-ion battery cell 200c, and the internal structure of the rechargeable battery 100c is as follows Figure 20 As shown, the structural assembly relationship of the rechargeable battery 100c is as follows Figure 21 and Figure 22 shown.

[0143] Such as Figure 18 , Figure 19 and Figure 22 As shown, the rechargeable battery 100c (that is, a direct-sealed lithium-ion battery) includes a cylindrical battery case 110c, a direct-sealed lithium-ion cell 200c installed in the battery case 110c, and a positive electrode disposed at one end of the battery case 110c. The electrode cap 120c and the controller 400c installed on the negative electrode terminal of the direct-sealed lithium-ion battery cell 200c.

[0144] The interior of the direct-sealed lithium-ion cell 200c is filled with elec...

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Abstract

The invention discloses a discharge control method and rechargeable battery charge control method of a rechargeable battery and the rechargeable battery. An electric system of the rechargeable batterycomprises a lithium ion battery cell and a discharge control circuit, and can also comprise a charge control circuit, a positive electrode of the lithium ion battery cell is electrically connected with a common grounding end of the charge and / or discharge control circuit, the common grounding end is used as a positive electrode of charging input and / or discharge output of the rechargeable battery, a negative electrode of the lithium ion battery cell is electrically connected with the output end of the charging control circuit and the input end of the discharging control circuit, and the inputend of the charge control circuit and the output end of the discharge control circuit are electrically connected with the negative electrode of the rechargeable battery; the rechargeable battery discharges to the outside by controlling the voltage of the negative electrode of the lithium ion battery cell, and charges the lithium ion battery cell by controlling the voltage and / or current of the negative electrode of the rechargeable battery, so that the structure of the rechargeable battery is simplified, a larger space is vacated for the lithium ion battery cell, and the volumetric specific energy of the lithium ion battery cell is improved.

Description

technical field [0001] The invention relates to the technical field of secondary batteries, in particular to a discharge control method for a rechargeable battery, a charging control method and a rechargeable battery. Background technique [0002] The cylindrical primary battery standardized by GB / T 8897.2 (IEC 60086-2) has been widely used in the field of hand-held or portable electronic and electrical products. Due to the fact that primary batteries cannot be reused, and there are problems such as high battery cost and environmental pollution caused by waste batteries, the demand for secondary battery products that can replace GB / T 8897.2 (IEC 60086-2) standardized primary batteries is increasing in the consumer market. . In the field of rechargeable battery products compatible with GB / T 8897.2 (IEC60086-2) standardized primary batteries, nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries and other products have been born successively, but the...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/0525H01M10/42
CPCH02J7/0068H02J7/00712H02J7/007182H01M10/0525H01M10/425H01M10/44H02J7/0063H02J7/0042H01M10/4257Y02E60/10H01M2010/4271H02J7/0049H01M10/0422H01M10/48H02J7/0031H02J7/0036
Inventor 李松邓爱雯靳体航
Owner SHENZHEN MAIGESONG ELECTRICAL TECH CO LTD
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