A battery composed of a combination of formed cells in a winding manner is called a wound battery. The wound battery is also called a battery core, which is known in the battery industry as a core.
Since the 1980s, American-made spiral wound storage batteries have been chased by fans for their super-starting current, strong shock resistance, excellent high and low temperature performance and superior cycle life. BMW, Mercedes-Benz, JEEP High-end models have always used the spiral-wound battery as the standard battery. Especially in the four-wheel drive off-road, car modification, car audio, car start, industrial, marine, and military markets, its convincing quality and performance has been sought after by industry professionals and enthusiasts. The patent for the spiral structure used in the battery was valid in 1973 and officially expired in 2003. However, due to its production process and formulation problems, few manufacturers around the world can produce similar products, which have been the market in the highest end of the car battery. American brands are monopolized. However, because foreign imported batteries are subject to a large amount of tariffs and transportation costs, prices have remained high, which has made the majority of ordinary consumers discouraged. Most domestic consumers have no way to buy performance at lower prices. The best battery.
A battery composed of a combination of formed cells in a winding manner is called a wound battery. The wound battery is also called a battery core, which is known in the battery industry as a core.
A station or station that combines the positive electrode, the negative electrode, and the separator paper by hand or machine is called a winding station. In addition to the winding method, there are also batteries that are combined in a laminated manner. After the unsealing of foreign production technology patents, the company began to independently develop such high-performance batteries. Since 2002, domestic batteries have finally developed high-performance spiral windings with performance comparable to those of foreign brands in October 2006. Battery. The product not only covers the 12V3AH~13AH series of large-capacity start-up and power deep cycle batteries, but also introduces 12V2.5AH, 12V5AH, 12V8AH, 6V2.5AH, 6V8AH and other series of small capacity spiral wound batteries. It has been launched by domestic and foreign military tanks, generator sets, aerospace and other fields. It has been well received by domestic and foreign customers. Its price is less than two-thirds of imported brand batteries. There are domestic 12V45AH spiral rolls. It is a record-breaking battery that can replace the traditional 12V100AH battery to start a large truck with a batch size of up to 800cc. At present, the company mainly targets domestic car users:
Car start winding battery series
12V20AH12V25AH12V30AH12V36AH12V41AH12V50AH, and 12V60AH12V65AH12V75AH three specifications for large construction machinery, the specific unbeatable price/performance ratio
Motorcycle battery series
In the early stage of the development of domestic wound batteries, the method of forming the combination of battery raw materials was basically manual winding. After development, the operation method of winding with semi-automatic equipment was studied. Mainstream companies (domestic) use semi-automatic winding, while some SMEs still use manual winding.
Manual winding, controlled by manual
Manual winding, controlled by manual
Machine winding, finishing glue is operated by machine, manual control
Machine winding, finishing glue is operated by machine, manual control
Roll core finished product
Roll core finished product
Domestic brand
The coiled valve-regulated sealed lead-acid battery has the largest hydrogen evolution process on the negative electrode by using a special process to manufacture the grid by using an alloy with a very high hydrogen evolution overpotential, and reasonable matching of the positive and negative active materials. The limit is suppressed, and the oxygen generated by the overcharge of the positive electrode reaches the negative electrode through the separator, and reacts with the lead on the negative electrode to generate water, so that the gas inside the battery is recombined to prevent water loss and maintenance-free.
Compared with the flat battery, the wound battery is formed by high-voltage winding of a plate of only about 1 mm. The battery has many characteristics through special processes:
1. Superior high rate discharge capability, maximum discharge rate is 18C~30C.
2. Excellent high and low temperature performance, can work from -55 ° C ~ 150 ° C.
3. Smooth high output voltage and higher energy density.
4. Robust construction and excellent seismic performance.
5. No free electrolyte (such as colloidal acid), can be placed in any direction.
6. It can be charged quickly, and it can charge more than 95% of electricity (1C charging) in 40 minutes.
7. Long life, designed float life can be more than 8 years.
8. Extremely high resistance to small currents and deep discharge
This battery is mainly used for the following purposes except for instrumentation, power tools, fitness equipment, medical equipment, solar lamps, power transmission equipment, and various backup power sources:
1, replace the traditional car battery
2, used for emergency start of the car
The coiled battery lead-acid battery is a technical ace of developed countries in the West. According to information statistics, the United States began to study coiled batteries in the 1960s. A few developed countries in the West first developed products such as coiled lead-acid storage batteries for military applications (armored vehicles, tanks and submarines). In military tests, such batteries can still be quickly activated by other bullet-off devices.
The big difference is that there are several differences:
First, the structure is different, the wound battery is a spiral structure, and the ordinary battery is generally a flat laminated structure.
Second, the grid material is different. Ordinary lead-acid batteries generally use Pb-Sb alloy or Pb-Ca alloy. The material is hard. The wound battery is generally made of pure lead or lead-tin alloy, which is more suitable for winding.
Third, the winding battery is sealed and valve-controlled, and the ordinary battery is divided into several types, such as open type.
1. Super high rate discharge capacity, the maximum discharge rate is 18C10.
2. Excellent high and low temperature performance, can work at -55 ° C ~ 75 ° C.
3. Smooth high output voltage, higher energy density.
4. Strong structure and excellent seismic performance.
5. No free electrolyte, can be placed in any direction.
6. It can be charged quickly, and it can charge more than 95% in 40 minutes.
7. Long life, design float life can reach more than 8 years.
8. Extremely high resistance to low current and deep discharge.
