CN106025395A - Symmetric battery - Google Patents
Symmetric battery Download PDFInfo
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- CN106025395A CN106025395A CN201610430529.6A CN201610430529A CN106025395A CN 106025395 A CN106025395 A CN 106025395A CN 201610430529 A CN201610430529 A CN 201610430529A CN 106025395 A CN106025395 A CN 106025395A
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- battery
- electrode
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- symmetrical
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- 239000007772 electrode material Substances 0.000 claims abstract description 10
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 4
- 150000003624 transition metals Chemical class 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 150000001875 compounds Chemical group 0.000 description 2
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- -1 diaphragm Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/38—Construction or manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
本发明涉及一种新的化学电源——对称电池，即正(阴)、负(阳)极采用相同电极材料的电池，电极材料可以同时含有两种或两种以上的过渡金属元素。相对于传统电池，对称电池工艺设计更简单，更容易加工制作，设备成本更低。本发明提出的对称电池采用两个相同的电极分别用作电池的正、负极，生产电池所需的电极加工和制作工艺及其相关设备仅需要一套，可以大大降低企业投入生产门槛。The invention relates to a new chemical power source—a symmetrical battery, that is, a battery in which the positive (cathode) and negative (anode) electrodes use the same electrode material, and the electrode material can contain two or more transition metal elements at the same time. Compared with traditional batteries, symmetrical battery technology design is simpler, easier to process and manufacture, and lower equipment cost. The symmetrical battery proposed by the present invention uses two identical electrodes as the positive and negative electrodes of the battery respectively, and only one set of electrode processing and manufacturing process and related equipment required for battery production is required, which can greatly reduce the threshold for enterprises to put into production.
Description
技术领域technical field
本发明属于电化学储能领域，涉及一种新型电池技术。The invention belongs to the field of electrochemical energy storage and relates to a novel battery technology.
背景技术Background technique
电池是当前最重要的一种电化学储能技术。一般包括正(阴)极、负(阳)极、电解液、隔膜、外壳附件等基本组成。其中正(阴)极材料要求活性物质具有较高的氧化还原电极电势，而负(阳)极材料的活性物质应具有较低的氧化还原电极电势，这样可以获得高的电池电动势。因此，传统电池技术都采用非对称设计，即正(阴)极和负(阳)极采用不同的电极材料。尽管非对称电池更容易设计并已有广泛的应用，如锂离子电池、铅酸电池、镍氢电池、碱锰电池等。但所有这些电池在制作和生产过程中，都需要分别考虑正极和负极，需要两套独立的材料加工和电极制作工艺路线，因而所需的设备、原材料和技术成本相对较高。Batteries are currently the most important electrochemical energy storage technology. Generally, it includes positive (cathode) pole, negative (anode) pole, electrolyte, diaphragm, shell accessories and other basic components. Among them, the positive (cathode) material requires the active material to have a higher redox electrode potential, while the active material of the negative (anode) material should have a lower redox electrode potential, so that a high battery electromotive force can be obtained. Therefore, traditional battery technology adopts an asymmetric design, that is, different electrode materials are used for the positive (cathode) electrode and the negative (anode) electrode. Although asymmetric batteries are easier to design and have been widely used, such as lithium-ion batteries, lead-acid batteries, nickel-metal hydride batteries, alkaline manganese batteries, etc. However, in the manufacturing and production process of all these batteries, the positive electrode and the negative electrode need to be considered separately, and two sets of independent material processing and electrode manufacturing process routes are required, so the required equipment, raw materials, and technology costs are relatively high.
对称电池充电后与传统非对称电池的储放电机制完全一致，因此，是一种可行的电池技术。新组装的对称电池由于完全处于放电态，只有充电后才具备传统非对称商品电池的功能。例如：对称电池的电极材料AB包含两种不同活性组分A和B，充电后，正极中的一种活性组分A转化成高氧化态形式AO，负极中的另一活性组分B转化为低氧化态形式(还原态)BR，即AB充电后分别在正、负极以AOB和ABR形式存在，其电动势为两个电对AOB/AB与AB/ABR的氧化还原电极电势差。After charging, the storage and discharge mechanism of the symmetrical battery is exactly the same as that of the traditional asymmetric battery, so it is a feasible battery technology. Since the newly assembled symmetrical battery is completely in a discharged state, it can only have the function of a traditional asymmetric commercial battery after charging. For example: the electrode material AB of a symmetrical battery contains two different active components A and B. After charging, one active component A in the positive electrode is converted into a high oxidation state form A O , and the other active component B in the negative electrode is converted into It is in the form of low oxidation state (reduction state) B R , that is, after AB is charged, it exists in the form of A O B and A B R at the positive and negative electrodes respectively, and its electromotive force is the oxidation of two pairs of A O B/AB and AB/AB R Reduction electrode potential difference.
发明内容Contents of the invention
本发明旨在设计一种新型对称电池，与传统电池技术相比，对称电池的正(阴)极材料与负(阳)极材料完全相同。The present invention aims to design a new type of symmetrical battery. Compared with traditional battery technology, the positive (cathode) electrode material of the symmetrical battery is exactly the same as the negative (anode) electrode material.
特别地，要求电极材料的主体是由两种以上(含两种)过渡金属元素组成的复合物，并且每种过渡金属元素存在两种以上(含两种)稳定的化合态形式。In particular, it is required that the main body of the electrode material is a composite composed of two or more transition metal elements, and each transition metal element has two or more stable compound forms.
本发明提出的对称电池采用两个相同的电极分别用作电池的正、负极，生产电池所需的电极加工和制作工艺及其相关设备仅需要一套，可以大大降低企业投入生产门槛。在电池的实际生产中，非对称电池有时存在正、负极活性材料荷电状态不一致的情况，就必须对单个电极或两个电极分别充电使电池的正、负极均为充电态。而对称电池只需一次性对电池充电就可正常使用。因此，对称电池的充电化成更简单。The symmetrical battery proposed by the present invention uses two identical electrodes as the positive and negative electrodes of the battery respectively, and only one set of electrode processing and manufacturing process and related equipment required for battery production is required, which can greatly reduce the threshold for enterprises to put into production. In the actual production of batteries, asymmetric batteries sometimes have inconsistent charging states of positive and negative active materials, so it is necessary to charge a single electrode or two electrodes separately so that the positive and negative electrodes of the battery are both charged. The symmetrical battery can be used normally only by charging the battery once. Therefore, the charging and formation of symmetrical batteries is simpler.
具体实施方式detailed description
以下结合实施例对本发明的技术特点做进一步说明，但并不限制本发明内容及其权利要求。The technical characteristics of the present invention will be further described below in conjunction with the examples, but the content of the present invention and its claims are not limited.
对称电池的正极(cathode)和负极(anode)均由同样的电极活性材料ABY组成。充电(charge)时，正极活性物质ABY发生氧化反应转化为荷电态AOBY，负极活性物质ABY发生还原反应转化为荷电态ABRY。电池的电动势为电极对AOBY/ABY与ABY/ABRY的氧化还原电势差。放电(discharge)时，正极的AOBY还原向ABY态转化，负极的ABRY氧化向ABY态转化，最终两个电极均回到同样的初始态。Both the cathode and the anode of the symmetrical battery consist of the same electrode active material ABY. When charging (charge), the positive electrode active material ABY undergoes an oxidation reaction and transforms into a charged state A O BY, and the negative electrode active material ABY undergoes a reduction reaction and transforms into a charged state ABRY . The electromotive force of the battery is the redox potential difference between the electrode pair A O BY / ABY and ABY / AB R Y. During discharge, the A O BY of the positive electrode is reduced to the ABY state, and the AB RY of the negative electrode is oxidized to the ABY state, and finally both electrodes return to the same initial state.
所述的A和B可以是过渡金属元素组成的复合物，并且每种过渡金属元素存在两种以上(含两种)稳定的化合态形式。如A可以为Co、Ni、Cu等易形成较高电极电势对的元素，B可以为Mn、Fe、V等能形成较低电极电势对的元素。Said A and B may be a complex composed of transition metal elements, and each transition metal element has more than two (including two) stable compound forms. For example, A can be an element such as Co, Ni, Cu, etc. that is easy to form a pair of higher electrode potentials, and B can be an element that can form a pair of lower electrode potentials, such as Mn, Fe, V.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430529.6A CN106025395A (en) | 2016-06-16 | 2016-06-16 | Symmetric battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430529.6A CN106025395A (en) | 2016-06-16 | 2016-06-16 | Symmetric battery |
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| Publication Number | Publication Date |
|---|---|
| CN106025395A true CN106025395A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610430529.6A Pending CN106025395A (en) | 2016-06-16 | 2016-06-16 | Symmetric battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508067A (en) * | 2018-02-11 | 2018-09-07 | 多氟多（焦作）新能源科技有限公司 | A method of evaluating the battery material of lithium ion battery using Symmetrical cells |
| CN109342952A (en) * | 2018-09-26 | 2019-02-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery electrode and electrolyte interface evaluation method |
| CN110085917A (en) * | 2019-04-28 | 2019-08-02 | 天津瑞晟晖能科技有限公司 | All-solid lithium-ion battery and preparation method thereof and electrical equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203839459U (en) * | 2014-05-07 | 2014-09-17 | 宋维鑫 | Sodium-ion battery with symmetric electrodes |
| CN104900862A (en) * | 2015-04-10 | 2015-09-09 | 中国科学院物理研究所 | P2 phase layered electrode material of symmetric sodium ion secondary battery and preparation method thereof |
-
2016
- 2016-06-16 CN CN201610430529.6A patent/CN106025395A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203839459U (en) * | 2014-05-07 | 2014-09-17 | 宋维鑫 | Sodium-ion battery with symmetric electrodes |
| CN104900862A (en) * | 2015-04-10 | 2015-09-09 | 中国科学院物理研究所 | P2 phase layered electrode material of symmetric sodium ion secondary battery and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508067A (en) * | 2018-02-11 | 2018-09-07 | 多氟多（焦作）新能源科技有限公司 | A method of evaluating the battery material of lithium ion battery using Symmetrical cells |
| CN109342952A (en) * | 2018-09-26 | 2019-02-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery electrode and electrolyte interface evaluation method |
| CN109342952B (en) * | 2018-09-26 | 2021-07-13 | 合肥国轩高科动力能源有限公司 | Lithium ion battery electrode and electrolyte interface evaluation method |
| CN110085917A (en) * | 2019-04-28 | 2019-08-02 | 天津瑞晟晖能科技有限公司 | All-solid lithium-ion battery and preparation method thereof and electrical equipment |
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Application publication date: 20161012 |