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Poly-lithium battery with high safety and high capacity and energy division process thereof

A high-safety, lithium-ion battery technology, applied in the manufacture of battery pack components, non-aqueous electrolyte batteries, electrolyte batteries, etc., can solve hidden dangers, thermal runaway safety of lithium-ion batteries, etc. Potential safety hazards, environmental performance improvement effects

Active Publication Date: 2010-10-13
厦门太和动力电源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is a high-safety and large-capacity polylithium battery and its energy division process, which solves the potential safety hazard caused by thermal runaway inside the lithium-ion battery

Method used

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  • Poly-lithium battery with high safety and high capacity and energy division process thereof
  • Poly-lithium battery with high safety and high capacity and energy division process thereof
  • Poly-lithium battery with high safety and high capacity and energy division process thereof

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Embodiment Construction

[0027] The present invention uses an energy splitting film 2 inside the polylithium battery to isolate a plurality of battery slices 1 into several energy units. The specific steps are described in detail in conjunction with the accompanying drawings.

[0028] First, if figure 1 As shown, each battery sheet 1 of the polylithium battery in this embodiment adopts a laminated sheet structure of two negatives and one positive, that is, a positive electrode sheet 12 is sandwiched between two negative electrode sheets 11, and a positive electrode sheet 12 is used between the positive and negative electrode sheets. Porous ceramic diaphragm 13 separated. After being stacked, the battery sheet 1 is formed by thermal polymerization and solidification in a high-temperature electrolyte.

[0029] then see figure 2 , image 3 , with four battery slices 1 as an energy unit, separated by an energy splitting membrane 2 . The shape of the energy splitting membrane 2 is generally the same ...

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Abstract

The invention mainly discloses a poly-lithium battery with high safety and high capacity and an energy division process thereof. The poly-lithium battery adopts an energy division film to isolate a plurality of battery pieces inside the poly-lithium battery into a plurality of energy units. The invention effectively solves the problem of potential safety hazard of explosive combustion generated by the poly-lithium battery under the conditions of short circuit, needle prick and impact abuse and improves the comprehensive electrical property and the environmental property of the battery.

Description

technical field [0001] The invention relates to lithium battery technology, in particular to a high-safety and large-capacity polylithium battery and its energy division technology. Background technique [0002] Since the commercialization of lithium-ion batteries in the 1990s, lithium-ion batteries have been recognized by the industry for their high specific energy and high voltage platform, and have been continuously applied and promoted in the use of energy systems in various industries. However, due to the safety performance of the high-capacity and power lithium-ion batteries widely used at present, the controllability of the safety conditions of the internal thermal runaway is difficult to meet the requirements with the increase of the battery cell capacity. The main obstacle to the commercialization of power lithium-ion batteries. [0003] The interior of a lithium-ion battery is mainly composed of overlapping battery sheets, and its battery capacity increases with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/058H01M2/16H01M2/34H01M2/18H01M50/406H01M50/44H01M50/586H01M50/593
CPCY02E60/10Y02P70/50
Inventor 马军玲王小峰杨向全
Owner 厦门太和动力电源科技有限公司
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