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Solid state bipolar battery

一种双极性电池、双极性电极的技术，应用在双极电极、碱性蓄电池、一次电池等方向，能够解决限制性能等问题

Active Publication Date: 2018-06-08
IONIC MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, low ionic conductivity and high internal impedance limit the performance of this design

Method used

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preparation example Construction

[0146] Synthetic methods can also vary depending on the specific components and desired form of the final material (eg, films, particles, etc.). However, the method comprises the basic steps of first mixing at least two of the components, adding a third component in an optional second mixing step, and heating the components / reactants to synthesize solid ions in the heating step conductive polymer material. In one aspect of the invention, the resulting mixture can optionally be formed into a film of desired dimensions. If no dopant is present in the mixture resulting from the first step, it can then be added to the mixture with heat and optionally the application of pressure (positive pressure or vacuum). All three components can be present and mixed and heated for one-step synthesis of solid ion-conducting polymer materials. However, this heating step can be performed in a separate step from any mixing, or it can be done while mixing is taking place. The heating step can be...

Embodiment 1

[0191]PPS and chloranil powder were mixed in a molar ratio of 4.2:1 (the ratio of base polymer monomer to dopant was greater than 1:1). The mixture is then heated under argon or air at a temperature up to 350° C. at atmospheric pressure for about 24 hours. A color change was observed, confirming the generation of a charge transfer complex in the polymer-dopant reaction mixture. The reaction mixture is then reground to a small average particle size of 1-40 microns. LiTFSI powder (12% by weight of the total mixture) was then mixed with the reaction mixture to produce a synthesized solid ion-conducting polymer material. A solid ion-conducting polymer material used as a solid ion-conducting polymer electrolyte in this aspect is referred to as a solid polymer electrolyte when so used.

[0192] The solid ion-conducting polymer electrolyte can be used in multiple locations in the battery, including in the electrodes, or as a separate dielectric non-electrochemically active electrol...

Embodiment 2

[0202] Additional solid ion-conducting polymer materials, the materials synthesized and described in Example 1 (PPS-chloranil-LiTFSI) prepared by using the synthesis method of Example 1, and their reactants are listed in Table 3. Correlated ionic conductivity at room temperature (EIS method).

[0203] table 3:

[0204]

[0205] measuring various physical properties of the solid ion-conducting polymer material, and determining that the solid ion-conducting polymer material has an electron conductivity at room temperature of less than 1 x 10 -8 S / cm; can be molded down to a thickness of 200 microns down to 20 microns; has significant ion mobility at very low temperatures (eg -40°C), and an ion conductivity greater than 1.0E-05S at room temperature / cm, 1.0E-04S / cm, and 1.0E-03S / cm, and these ionic conductivities include lithium as one of the mobile ions conducted through the solid ion-conducting polymer material.

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Abstract

A bipolar battery having a solid ionically conductive polymer material as its electrolyte enabling high voltage discharge.

Description

technical field [0001] One or more embodiments of the present invention relate to bipolar electrodes comprising solid ionically conductive polymer materials, methods of making the same, and bipolar batteries comprising the same. Background technique [0002] US Patent 627,009 describes a lead-acid battery constructed in such a way that "end electrodes and intermediate electrodes are connected in electrical series...so that [the current collectors] form the only conductive connection between opposite sides of each intermediate electrode" . Bipolar batteries have struggled to overcome the challenge of isolating the liquid electrolyte to prevent communication and shorting between cells. [0003] Typical bipolar batteries focus on containing liquid electrolytes into their individual cells using expensive and complex internal sealing mechanisms. To avoid the use of sealing mechanisms, low-conductivity solid electrolytes and liquid-gel electrolytes with sealing have been tried i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/06H01M4/48H01M10/24
CPCH01M4/131H01M10/0418H01M10/052H01M10/0585H01M2300/0082H01M10/0565H01M6/181H01M2004/029Y02E60/50Y02E60/10Y02P70/50Y02T10/70H01M4/48H01M8/0202H01M10/056H01M10/058
Inventor M·A·齐莫尔曼R·莱辛
Owner IONIC MATERIALS INC
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