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Novel low-cost high-density sodium-nickel chloride single battery and battery pack thereof

A single battery, low-cost technology, applied in the direction of battery electrodes, battery pack components, secondary batteries, etc., can solve the problems of complexity and limited application, and achieve the effects of long service life, convenient manufacture, and simple structure

Inactive Publication Date: 2010-06-23
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current structural design of sodium-nickel chloride batteries is relatively complicated, which limits its application. It is necessary to develop a battery with a simple structure and assembly technology to provide a basis for its large-scale industrialization and application.

Method used

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  • Novel low-cost high-density sodium-nickel chloride single battery and battery pack thereof
  • Novel low-cost high-density sodium-nickel chloride single battery and battery pack thereof
  • Novel low-cost high-density sodium-nickel chloride single battery and battery pack thereof

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Effect test

Embodiment 1

[0029] like figure 1 A novel low-cost high-density sodium-nickel chloride single battery of the present invention is shown, comprising a positive electrode of a porous nickel material, a filled molten salt electrolyte, a solid electrolyte ceramic tube (length 220mm, internal diameter 52mm, wall thickness 2mm) , Na in the metal sheet is the negative active material, the shell (60*60*245mm) and the heat insulating layer material wrapped outside the shell, the battery is in turn from the outside to the inside of the heat insulating layer material, the shell, the metal sheet, and the metal sheet The Na in the negative electrode active material, the solid electrolyte ceramic tube, the filled molten salt electrolyte and the positive electrode of the porous nickel material, the Na of the negative active material and the filled molten salt electrolyte are respectively filled on both sides of the solid electrolyte, and the metal sheet is coated on the On the solid electrolyte ceramic t...

Embodiment 2

[0031] like figure 2Shown, the novel low-cost high-density sodium-nickel chloride battery pack of the present invention, it comprises the monomer battery as described in embodiment 1 that is connected in parallel together, also comprises cooling device, battery pack insulation layer, battery pack case simultaneously And the whole battery control system, wherein the number of single cells is 30, and the appearance of the battery pack is rectangular; the heat insulation layer of the battery pack is a silica airgel heat insulation layer or a ceramic felt heat insulation layer or a glass fiber heat insulation layer layer; the cooling device has a fan; the battery pack casing is made of low-carbon steel; the internal working temperature of the battery pack is between 270°C and 350°C and is regulated by the battery controller.

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Abstract

The invention discloses a high-energy high-density sodium-nickel chloride single battery and a battery pack thereof, which is made under the atmospheric temperature, wherein the total battery system reaches 120 Wh / kg. The single battery comprises a positive electrode, an electrolyte, a ceramic tube, sodium which is used as a negative active substance in a metal chip, a shell and a heat insulation layer material which wraps the shell, wherein the battery sequentially comprises the heat insulation layer material, the shell, the metal chip, the sodium, the solid electrolyte ceramic tube and the positive electrode which is filled with fuse salt electrolyte and porous nickel material from the exterior to the interior, wherein the sodium of the negative active substance and the filled fuse salt electrolyte are respectively filled at two sides of the solid electrolyte, the metal chip is wrapped on the solid electrolyte ceramic tube, and a capillary gap is formed between the metal chip and the ceramic tube, the fused salt infiltrates the entire solid electrolyte ceramic tube, two electrode rods extends out of the shell to form a positive and a negative terminals, the positive terminal extends out of the shell from the fuse salt, and the negative terminal is connected with the metal chip to extend out of the shell.

Description

technical field [0001] The invention relates to a battery, and more specifically relates to a novel low-cost high-density sodium-nickel chloride single battery and a battery pack thereof. Background technique [0002] As a sodium-nickel chloride battery developed on the basis of the development of sodium-sulfur batteries, it has many similarities with sodium / sulfur batteries: for example, the solid electrolytes are all β”-Al 2 o 3 Ceramic materials, the negative electrode is liquid metal sodium. The difference is the positive electrode, which is dispersed in NaAlCl 4 Solid nickel and nickel chloride in the molten salt electrolyte replace liquid sulfur and sodium polysulfide in the cathode of sodium / sulfur batteries. In this way, the battery retains the original high energy density, high conversion efficiency, and no self-discharge of the sodium-sulfur battery. The sodium-nickel chloride battery provides an internal overcharge and overdischarge protection system. Due to t...

Claims

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Application Information

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IPC IPC(8): H01M10/38H01M4/40H01M2/02H01M2/14H01M4/64H01M10/50H01M50/213
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 杨晖魏晓玲帅莉芳沈晓冬
Owner NANJING UNIV OF TECH
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