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Square lithium-ferrous disulfide battery and its preparation method

A ferrous disulfide, square technology, applied in battery pack parts, electrodes of primary batteries, non-aqueous electrolyte batteries, etc., to achieve the effect of easy mass production and simple production method

Active Publication Date: 2012-10-17
EVE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the lithium-iron disulfide primary batteries on the market are mainly column-type. Althou

Method used

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  • Square lithium-ferrous disulfide battery and its preparation method
  • Square lithium-ferrous disulfide battery and its preparation method
  • Square lithium-ferrous disulfide battery and its preparation method

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Embodiment Construction

[0027] The prismatic lithium-iron disulfide battery of the present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0028] See figure 1 , The square lithium-ferrous disulfide battery mainly includes a casing 10, a cover 20, a cell and an electrolyte. The casing 10 is generally square, and is welded together with the cover 20 to form a closed space, in which the batteries and electrolyte are placed. The cell is composed of a positive electrode sheet 30, a negative electrode sheet 40, and a separator 50 separating the positive and negative electrode sheets 30, 40, which can be laminated or wound, and is flat and square. A current collector or a current collector can be arranged inside the positive electrode sheet and the negative electrode sheet, on which tabs are arranged.

[0029] The active material of the positive electrode sheet 30 is ferrous disulfide, the conductive agent is carbon and / or graphite-...

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Abstract

The invention relates to a square lithium-ferrous disulfide battery which comprises a roughly square shell, a cover welded together with the shell and an electric core and electrolyte arranged in the shell, wherein the electric core comprises a positive plate, a negative plate and a diaphragm insulating the positive plate from the negative plate. The positive plate comprises ferrous disulfide and the negative plate is a lithium sheet. The electric core has a structure selected from the group consisting of structure I and structure II. A preparation method for the square lithium-ferrous disulfide battery provided in the invention is simple, is convenient for bulk production and can customize products of various sizes according to application requirements for the products, thereby filling gaps in market vacancy. The prepared square lithium-ferrous disulfide battery is mainly applicable to commercially available high-end electronic products at present, e.g., portable music players, electronic dictionaries, palmtop computers, digital cameras and electric razors, and can meet various demands of customers on the market.

Description

technical field [0001] The invention relates to a lithium primary battery, in particular to a square lithium-ferrous disulfide battery and a preparation method thereof. Background technique [0002] At present, the lithium-iron disulfide primary batteries on the market are mainly column-type. Although the performance and use can meet the needs of most customers, there are still certain limitations in use. For example, high-end electronic products such as current portable music players, electronic dictionaries, palmtop computers, digital cameras and electric shavers all need to use square sheet lithium batteries. Contents of the invention [0003] Based on this, it is necessary to provide a junction square lithium-iron disulfide battery. [0004] A square lithium-ferrous disulfide battery comprises a substantially square casing, a cover welded together with the casing, an electric core and an electrolytic solution arranged in the casing. The electric core includes a posit...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M4/06H01M6/16
CPCY02E60/12
Inventor 袁中直刘玲余思恩刘金成
Owner EVE ENERGY CO LTD
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