source:other news
release time:2023-08-15
Hits:0
Popular:

During the discharge process of the battery, it belongs to the primary battery reaction. This type of electrode reaction involves electrolyte solution. If it can be analyzed whether the electrolyte solution is involved in the electrode reaction, the writing of the negative electrode reaction formula and the positive electrode reaction formula can be easily solved.
Taking lead-acid batteries as an example, we will analyze the writing method of electrode reaction equations.
The total reaction of lead-acid batteries is: Pb+PbO2+2H2SO4=2PbSO4+2H2O
According to the analysis of the working principle of the primary battery, the negative electrode loses electrons and undergoes an oxidation reaction. It can be seen that: Pb 2e -=Pb2+①, the generated Pb2+enters the electrolyte solution, and Pb2+cannot coexist with SO42- in the solution. The reaction must continue to generate PbSO4, that is, Pb2++SO42-=PbSO4 ②. Therefore, the negative electrode reaction formula of the primary battery is ①+②, that is, Pb 2e -+SO42-=PbSO4; The positive electrode is the electrode where electrons undergo a reduction reaction, with PbO2+2e -=Pb2++2O2- ①. Pb2+and O2- enter the solution. As the electrolyte solution is an H2SO4 solution, O2- cannot exist alone in an acidic environment. The particles that can be combined with O2- are H+and H2O. O2- preferentially combines with H+to generate H2O in an acidic environment, resulting in a reaction at the positive electrode: 4H++2O2-=2H2O ②; Pb2++SO42-=PbSO4 ③ According to the above analysis, the positive electrode reaction formula is ①+②+③, that is, PbO2+2e -+SO42-+4H+=PbSO4+2H2O. (Note: Charge conservation and mass conservation should be followed in the electrode reaction equation; when adding the negative and positive reaction equations to obtain the total reaction, it should be noted that the number of electrons gained and lost should be equal.)
For example, Ag Zn high-energy batteries (button batteries) are composed of Ag2O, Zn, and KOH solutions. The total reaction is: Zn+Ag2O+H2O=Zn (OH) 2+2Ag
Read recommendations:
lithium golf cart batteries Factory
12V 150Ah Rechargeable Lithium Battery for Marine Boat
What are some ways to extend the life of your home battery?
How to standardize the maintenance of UPS lithium battery?
Last article:Lithium primary battery.12 volt deep cycle batteries
Next article:What are the requirements for lithium batteries used in intelligent robots shared by lithium battery manufacturers?best solar powered generator
related suggestion
solar power battery storage Processing
2023-04-07lifepo4 battery 12v maker
2023-04-07lithium deep cycle marine battery manufacturer
2023-03-22solar batteries for home Factory
2023-03-20solar energy storage batteries price
2023-04-07lithium batteries for boats wholesale
2023-03-20solar batteries for home
2023-05-0824 volt deep cycle battery
2023-05-08solar battery for house
2023-05-08best battery for home inverter
2023-05-0812v solar battery
2023-05-08solar power storage
2023-05-0812V 200Ah LiFePo4 Battery Pack Prismatic Cell 4000 Cycles Lithium Ion IP65 200A Discharge for Trolling Motor Golf Cart
2025-02-28Smart Home Device Lipo Battery Cell Pack 3.7V
2023-02-14Lithium Ion Battery 18650 Pack 11.1V 2000mAh
2025-05-10Golf Cart 51.2V 105Ah LiFePo4 Battery Pack IP67 Waterproof with Bluetooth
2022-09-2932700 3.2V Special Battery Cell Rechargeable Explosion Proof
2025-04-11A Comprehensive Guide to Choosing the Right 18650 Battery for Your Business_复制
2025-03-13Choosing the Best 36V Lithium Trolling Motor Battery for Commercial Marine Applications
2025-05-29What are the knowledge introductions in the use of lithium batteries?best batteries for solar power storage
2023-06-07The Future of Energy Storage: Market Trends and Investment Opportunities
2025-03-13Choosing the Right 72 Volt Golf Cart Batteries: A Guide for Commercial Operators
2025-06-04How much battery power is left after using a lithium-ion battery for mobile phone energy storage before it can start charging.portable solar generator
2023-08-24Lithium phosphate iron battery pack balanced charging research status quo.solar battery storage system Processing
2023-04-089V battery charging precautions.lithium golf cart batteries manufacture
2023-05-06Large current lithium battery.best deep cycle marine battery
2023-03-09What is a new energy battery?deep cycle trolling motor battery Manufacturing
2023-03-16