CN203434241U - High-capacity ultra-thin lithium battery - Google Patents

Abstract

The utility model discloses a high-capacity ultra-thin lithium battery, comprising a battery cell, a positive lug (2) and a negative lug (5), wherein the battery cell is formed by lamination of four electrode plates and diaphragms (3) between the adjacent electrode plates in sequence; the four electrode plates are a first positive plate (6), a first negative plate (7), a second positive plate (8) and a second negative plate (9) in order, wherein both the first positive plate (6) and the second negative plate (9) are single-layer pole plates the inner layer of which are provided with coating layers (4); both the second positive plate (8) and the first negative plate (7) are double-layer pole plates the inner and outer layers of which are both provided with the coating layers (4); the positive lug (2) and the negative lug (5) are respectively arranged at two sides of the battery cell; the battery cell of the high-capacity ultra-thin lithium battery is formed by overlapping a plurality of electrode plates; the lugs are arranged at two sides of the battery cell, and therefore, the high-capacity ultra-thin lithium battery has the advantages of ultra-thinness and high capacity.

Description

A kind of high power capacity ultra-thin lithium cell

Technical field

The utility model relates to a kind of high power capacity ultra-thin lithium cell.

Background technology

Existing lithium battery, for reducing thickness, multistage will be divided on collector, part adopts double-deck coating, part adopts single layer coating, complicated process of preparation, and also also complicated around licking journey, and be difficult to raising capacity in effective volume, be therefore necessary to design a kind of novel high power capacity ultra-thin lithium cell.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of high power capacity ultra-thin lithium cell, and the battery core of this high power capacity ultra-thin lithium cell forms by multi-disc electrode slice is stacked, and lug is arranged on battery core both sides, has ultra-thin and advantage high power capacity concurrently.

The technical solution of utility model is as follows:

A ultra-thin lithium cell, comprises battery core, anode ear (2) and negative electrode lug (5), and battery core is stacked gradually and formed by the barrier film (3) between 4 pole pieces and adjacent pole piece;

Described 4 pole pieces are followed successively by the first positive plate (6), the first negative plate (7), the second positive plate (8) and the second negative plate (9); The internal layer that wherein the first positive plate (6) and the second negative plate (9) are is provided with the individual layer pole piece of coat (4); The second positive plate (8) and the first negative plate (7) are the double-deck pole piece that inside and outside layer is equipped with coat (4);

The first positive plate (6) equates with the width of the second negative plate (9), and the second positive plate (8) equates with the width of the first negative plate (7); The width of the first positive plate (6) is greater than the width of the second positive plate (8);

Anode ear (2) and negative electrode lug (5) minute are located at the both sides of battery core; The first positive plate (6) and the second positive plate (8) are all connected to anode ear (2) by collector; The first negative plate (7) and the second negative plate (9) are all connected to negative electrode lug (5) by collector.

Beneficial effect:

High power capacity ultra-thin lithium cell of the present utility model, its battery core forms by multi-disc electrode slice is stacked, and lug is arranged on battery core both sides, and lug is just in the cavity that two short pole pieces and 2 long pole pieces surround, and compact conformation, has ultra-thin and advantage high power capacity concurrently.And the preparation of pole piece and assembling are all very easy, can effectively simplify the production technology of battery, production efficiency is provided.

Accompanying drawing explanation

Fig. 1 is the overall construction drawing of high power capacity ultra-thin lithium cell;

Label declaration: 1-collector, 2-anode ear, 3-barrier film, 4-dressing layer, 5-negative electrode lug, 6-the first positive plate, 7-the first negative plate, 8-the second positive plate, 9-the second negative plate.

Embodiment

Below with reference to the drawings and specific embodiments, the utility model is described in further details:

Embodiment 1:

As shown in Figure 1, a kind of high power capacity ultra-thin lithium cell, comprises battery core, anode ear 2 and negative electrode lug 5, and battery core is stacked gradually and formed by the barrier film 3 between 4 pole pieces and adjacent pole piece;

Described 4 pole pieces are followed successively by the first positive plate 6, the first negative plate 7, the second positive plate 8 and the second negative plate 9; The internal layer that wherein the first positive plate 6 and the second negative plate 9 are is provided with the individual layer pole piece of coat 4; The second positive plate 8 and the first negative plate 7 are the double-deck pole piece that inside and outside layer is equipped with coat 4;

The first positive plate 6 equates with the width of the second negative plate 9, and the second positive plate 8 equates with the width of the first negative plate 7; The width of the first positive plate 6 is greater than the width of the second positive plate 8;

Anode ear 2 and negative electrode lug are located at the both sides of battery core for 5 minutes; The first positive plate 6 and the second positive plate 8 are all connected to anode ear 2 by collector; The first negative plate 7 and the second negative plate 9 are all connected to negative electrode lug 5 by collector.

Claims (1)

1. a high power capacity ultra-thin lithium cell, is characterized in that, comprises battery core, anode ear (2) and negative electrode lug (5), and battery core is stacked gradually and formed by the barrier film (3) between 4 pole pieces and adjacent pole piece;

Described 4 pole pieces are followed successively by the first positive plate (6), the first negative plate (7), the second positive plate (8) and the second negative plate (9); The internal layer that wherein the first positive plate (6) and the second negative plate (9) are is provided with the individual layer pole piece of coat (4); The second positive plate (8) and the first negative plate (7) are the double-deck pole piece that inside and outside layer is equipped with coat (4);

The first positive plate (6) equates with the width of the second negative plate (9), and the second positive plate (8) equates with the width of the first negative plate (7); The width of the first positive plate (6) is greater than the width of the second positive plate (8);

Anode ear (2) and negative electrode lug (5) minute are located at the both sides of battery core; The first positive plate (6) and the second positive plate (8) are all connected to anode ear (2) by collector; The first negative plate (7) and the second negative plate (9) are all connected to negative electrode lug (5) by collector.

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