Equipment parameters:
Model:JYK-2RO-15Operating pressure: 0.3-0.6 (Mpa) Water output: 0.25-100T/H
Dimensions: 150-1500 (cm) Voltage: 380 (V) Water quality: 0.1US Power: 1000 (w)
Conductivity: less than 10US Desalination rate: 99.5 (%) Single machine output: 0.25-100 (/h)
Inlet diameter: 50 (mm)
　　summary:
Ultra pure water in the battery industry includes pure water for battery production, pure water for lithium battery production, pure water for solar cell production, and pure water for battery grid plates. The preparation of electrolyte in batteries requires very strict requirements for pure water, usually requiring a conductivity of 0.1us/cm (resistance value of 10 megaohms) or higher. The traditional process for preparing ultrapure water for batteries often uses cation anion resin exchange equipment, but the disadvantage of this process is that the resin needs to be regenerated frequently after a period of use. With the continuous maturity of membrane separation technology, reverse osmosis filtration process or first stage reverse osmosis followed by ion exchange mixed bed (or electro deionization EDI) process is often used to produce ultrapure water.

Battery classification:
1. Primary battery: also known as a primary battery, refers to a battery that cannot be restored to its active substance by simple charging methods after discharge and can continue to be used, such as zinc manganese dioxide dry battery ZN-MnO2, lithium manganese battery, zinc air battery, primary zinc silver battery, etc.
2. Battery: also known as a secondary battery, refers to a battery that can be charged to restore its active substance after discharge and continue to be used. This charging and discharging process can reach dozens to thousands of cycles, such as nickel cadmium batteries (Ni Cd), nickel hydrogen batteries (Ni MH), lead-acid batteries (Pb-H2SO4)
3. Fuel cell: also known as continuous battery, refers to the continuous input of active substances participating in the reaction from the outside of the battery, and the battery works continuously to provide electrical energy, such as hydrogen oxygen fuel cells, phosphate fuel cells, etc.
4. Reserve battery: refers to the process in which the positive and negative electrodes of a battery do not directly contact the electrolyte during storage. Before use, the battery is injected with electrolyte or other methods are used to bring the electrolyte into contact with the positive and negative electrodes. After that, the battery enters a state of waiting to be discharged. I call this process "activation", so it is also called activated battery, such as magnesium battery, thermal battery, etc.
5. Classified by electrolyte: acidic battery, alkaline battery, neutral battery, organic electrolyte battery, non-aqueous inorganic electrolyte battery, solid electrolyte battery
6. Classified by battery characteristics: high-capacity batteries, sealed batteries, high-power batteries, maintenance free batteries, explosion-proof batteries, etc
7. Classified by positive and negative electrode materials: zinc manganese battery series, nickel cadmium nickel hydrogen series, lead-acid series, lithium battery series, etc.
　　Four common methods for preparing battery water:
Distilled water: Although the equipment is cheap, volatile impurities cannot be removed, and ions and shaping substances in the container may precipitate, causing secondary pollution.
Deionized water: It is a traditional process that has been used for a long time to produce pure water. However, storing deionized water can also easily cause bacterial growth.
Reverse osmosis: Reverse osmosis overcomes many disadvantages of distilled water and deionized water, and can effectively remove most impurities such as organic matter using reverse osmosis technology.
Ultra pure water: Its standard is a water resistivity of 18.2 M Ω - cm. The process of producing ultra pure water often uses reverse osmosis and ion exchange mixed bed or reverse osmosis and electro deionization（EDI）To produce, the latter is more economical and environmentally friendly compared to the former.

technological process:
1. Adopting ion exchange method, the process is as follows:
Raw water → Raw water booster pump →Multi media filter→Activated carbon filter→ Softener → Precision Filter → Cationic Resin Filter Bed → Cationic Resin Filter Bed → Cationic Resin Mixed Bed → Microporous Filter → Water Point
2. Adopting a two-stage reverse osmosis method, the process is as follows:
Raw water → Raw water booster pump → Multi medium filter → Activated carbon filter → Softener → Precision filter → First stage reverse osmosis → PH regulation → Intermediate water tank → Second stage reverse osmosis（reverse osmosis membraneSurface with positive charge → Purified water tank → Pure water pump → Microporous filter → Water point
3. Adopting EDI method, the process is as follows:
Raw water → Raw water booster pump → Multi medium filter → Activated carbon filter → Softener → Precision filter → Primary reverse osmosis machine → Intermediate water tank → Intermediate water pump → EDI system → Microporous filter → Water point
　　Process comparison:
At present, the processes for preparing ultrapure water for the chemical industry are basically the above three types, and most of the other process flows are derived from different combinations and combinations based on the above three basic process flows. Their advantages and disadvantages are listed below:
The first method of using ion exchange resin has the advantages of low initial investment and less space occupation, but the disadvantage is that it requires frequent ion regeneration, consumes a large amount of acid and alkali, and has a certain degree of environmental damage.
The second method uses a two-stage reverse osmosis equipment, which is characterized by a higher initial injection rate than using ion exchange resin, but does not require resin regeneration. The disadvantage is that the relevant membrane components need to be cleaned or replaced regularly, and the water quality is relatively low, mostly only about 1 US/cm. Therefore, when the quality requirements are higher, first stage reverse osmosis is often used followed by mixed bed (yin-yang double bed) for quality control.
The third method is to use reverse osmosis for pretreatment and then equip it with an electro deionization (EDI) device. This is currently the most economical and environmentally friendly process for producing ultrapure water, which does not require regeneration with acid or alkali and can continuously produce ultrapure water without causing much damage to the environment. Its disadvantage is that the initial investment is relatively expensive compared to the above two methods.
　　national standard:
The electrolyte is composed of concentrated sulfuric acid and ultra pure water treated by reverse osmosis equipment. It must comply with the national standard GB4554-84 for battery specific sulfuric acid and be mixed with qualified pure water to form an electrolyte with a density of 1.22 (+-0.01g/cm3 20oC).