Rechargeable battery, method, and equipment

A technology for rechargeable batteries and charging equipment, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, and secondary battery charging/discharging, etc. It can solve the problems that batteries cannot be charged quickly and achieve the effect of fast charging

Active Publication Date: 2015-04-15
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The embodiment of the present application provides a rechargeable battery, method and device to solve the technical problem that the battery cannot be charged quickly in the prior art, and realizes t

Method used

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  • Rechargeable battery, method, and equipment
  • Rechargeable battery, method, and equipment
  • Rechargeable battery, method, and equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0109] The embodiment of the present application provides a rechargeable battery, such as a nickel-metal hydride battery, a lithium-ion battery, etc., including: a battery cell, including: an outer packaging layer; an electrolyte; a winding core, including: The positive electrode formed on the fluid, the separator, the negative electrode formed by coating the negative electrode active material on the second current collector, and the metal positive and negative tabs, wherein the positive electrode, the separator and the negative electrode are stacked together and for winding.

[0110] Wherein, the average particle size of the negative electrode active material is smaller than the first preset particle size, and the specific surface area of ​​the negative electrode active material is larger than the first preset specific surface area, so that when the rechargeable battery is charged, the negative electrode is active The number of bits in the material used to provide ions to und...

Embodiment 2

[0138] Please refer to figure 1 , the embodiment of the present application provides a charging method, which is applied to an electronic device using the rechargeable battery of Embodiment 1, and the method includes:

[0139] S101: Detect and obtain the first current electric quantity of the rechargeable battery;

[0140] S102: Judging whether the first current electric quantity is less than a first preset electric quantity, and obtaining a first judgment result;

[0141] S103a: Detect and obtain a first temperature value of the rechargeable battery when the first judgment result indicates that the first current electric quantity is less than the first preset electric quantity;

[0142] S104: Judging whether the first temperature value is greater than a first preset temperature value and smaller than a second preset temperature value, and obtaining a second judgment result, wherein the first preset temperature value is smaller than the second preset temperature value temper...

Embodiment 3

[0176] Based on the same inventive concept, the embodiment of the present application also provides a charging device for charging the rechargeable battery as in the first embodiment by using the charging method in the second embodiment, such as Figure 4 As shown, the charging equipment includes:

[0177] The first power detection unit 401 is configured to detect and obtain the first current power of the rechargeable battery;

[0178] A first judging unit 402, configured to judge whether the first current electric quantity is less than a first preset electric quantity, and obtain a first judgment result;

[0179] The first temperature detection unit 403 is configured to detect and obtain a first temperature value of the rechargeable battery when the first judgment result indicates that the first current electric quantity is less than the first preset electric quantity;

[0180] The second judging unit 404 is configured to judge whether the first temperature value is greater ...

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Abstract

The invention discloses a rechargeable battery, a method, and equipment, and aims to solve the problem that in the prior art the batteries cannot be charged rapidly. The rechargeable battery comprises an electrical core, which comprises an external packing layer and electrolyte; and a roll core, which comprising a positive electrode, a diaphragm, a negative electrode, a metal positive electrode lug, and a metal negative electrode lug; wherein the positive electrode is prepared by painting a positive electrode active material on a first current collector, the negative electrode is prepared by painting a negative electrode active material on a second current collector, and the roll core is prepared by laminating the positive electrode, the diaphragm, and the negative electrode and then rolling. The average particle size of the negative electrode active material is smaller than a first predetermined particle size, and the specific surface area of the negative electrode active material is larger than a first predetermined specific surface area, so that the digit, which is provided for ions to carry out electrochemical reactions, of the negative electrode active material is greater than a first predetermined digit, and the ion reaction speed is faster than a first predetermined speed, wherein the ions come from the positive electrode active material.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a rechargeable battery, method and equipment. Background technique [0002] The rapid development of mobile Internet technology has led to the vigorous development of mobile Internet electronic devices. Mobility and portability are becoming more and more important for electronic devices such as laptops, tablets, and smart phones. Among them, the mobile working hours of electronic devices are long It is a key factor to determine the mobile performance of electronic equipment. [0003] However, due to the slow development of lithium-ion battery technology, which is widely used in electronic products, the energy that lithium-ion batteries can store per charge is limited, which greatly restricts the performance of electronic products towards faster computing power, stronger multimedia performance and longer operation. With the pace of time development, because the batter...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/583H01M10/0525H01M10/44H02J7/00
CPCH01M4/36H01M4/583H01M4/625H01M10/04H01M10/058H01M10/44H02J7/00Y02E60/10
Inventor 李涛林威志
Owner LENOVO (BEIJING) CO LTD
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