18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
Sino Technology Manufacturer Group co.,ltd Home  >  product  >  energy storage lithium battery  >  lithium 18650 battery
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

Sino Technology Manufacturer Group co.,ltd
Sino Technology Manufacturer Group co.,ltd

18650 battery rechargeable
18650 battery rechargeable
18650 battery rechargeable
18650 battery rechargeable
18650 battery rechargeable
18650 battery rechargeable
>
<
18650 battery rechargeable

18650 battery rechargeable

Product Model No: 18650

Capacity: 8000MAH

Voltage: 11.1V

Pole Ear: Bipolar Ear

Minimum Capacity: 8000MAH

Product description

Related Products

  Does the manufacturing process of 18650 lithium-ion batteries affect the lifespan?

  Does the manufacturing process of 18650 lithium-ion batteries affect the lifespan? In terms of ingredients, attention should be paid to the amount of positive and negative materials added. Generally speaking, in the process of design and assembly, it is generally required that the capacity of the negative electrode is more than that of the positive electrode. If it is not excessive, lithium will be precipitated from the negative electrode during the charging process, forming lithium dendrites, which will affect safety.

  Does the manufacturing process of 18650 lithium-ion batteries affect the lifespan? In terms of ingredients, attention should be paid to the amount of positive and negative materials added. Generally speaking, in the process of design and assembly, it is generally required that the capacity of the negative electrode is more than that of the positive electrode. If it is not excessive, lithium will be precipitated from the negative electrode during the charging process, forming lithium dendrites, which will affect safety. If the negative electrode is too much in excess of the positive electrode, the positive electrode may be delithiated excessively, causing the structure to collapse.

  The electrolyte is also a very important factor in the influence of the reversible capacity of the battery. The process of removing and intercalating lithium ions from electrode materials is always a process of interaction with the electrolyte, which has an important impact on the interface conditions and internal structure changes of electrode materials. The electrolyte will be lost in the process of interacting with the positive and negative electrode materials. In addition, when the battery is formed to form an SEI film and pre-charged, part of the electrolyte will also be consumed. Therefore, the type of electrolyte and the amount of liquid injection also affect the battery life.

  The manufacturing process of lithium-ion batteries mainly includes: positive and negative electrode ingredients, coating, sheet production, winding, shelling, liquid injection, sealing, chemical formation, etc. In the battery production process, the requirements for each step of the process are very strict. Any process that is not well controlled may affect the battery cycle performance.

  During the batching process of positive and negative electrodes, attention should be paid to the amount of binder added, stirring speed, concentration of slurry, temperature and humidity, and to ensure that the materials can be dispersed evenly.

  Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charge, -40℃ 3C discharge capacity ≥70%

  Charging temperature: -20~45℃ -Discharging temperature: -40~+55℃ -40℃ supports maximum discharge rate: 3C -40℃ 3C discharge capacity retention rate≥70%

  Click for details

  In the coating process, under the premise of ensuring high specific energy of the battery, reasonably controlling the coating amount of the positive (negative) electrode and appropriately reducing the thickness of the electrode will help reduce the battery decay rate. The coated pole piece needs to be further compacted with a roller press. Appropriate positive compaction density can increase the discharge capacity of the battery, reduce internal resistance, reduce polarization loss, and prolong the cycle life of the battery.

  When winding, the rolled battery core should be tight and not loose. The tighter the separator and the positive and negative electrodes are rolled, the smaller the internal resistance, but if the roll is too tight, it will cause difficulty in wetting the pole piece and the separator, resulting in a smaller discharge capacity; if the roll is too loose, the pole piece will excessively expand during the charging and discharging process. , increased internal resistance, reduced capacity, and shortened cycle life.

详情_02.jpg

详情_03.jpg

详情_04.jpg

详情_05.jpg

详情_06.jpg


12v 50ah lifepo4 lithium battery pack 12v 50ah lifepo4 lithium battery pack

12v 50ah lifepo4 lithium battery pack

SUNBEAM

18650 battery 1800mah 18650 battery 1800mah

18650 battery 1800mah

SUNBEAM

18650 lithium ion battery 18650 lithium ion battery

18650 lithium ion battery

SUNBEAM

1800mah 18650 battery 1800mah 18650 battery

1800mah 18650 battery

GREEN POWER

lithuim ion battery 18650 lithuim ion battery 18650

lithuim ion battery 18650

SUNBEAM

3.7v 3000mah 18650 battery 3.7v 3000mah 18650 battery

3.7v 3000mah 18650 battery

SUNBEAM

18650 battery 3.7v 3500mah 18650 battery 3.7v 3500mah

18650 battery 3.7v 3500mah

SUNBEAM

18650 2000mah battery 18650 2000mah battery

18650 2000mah battery

SUNBEAM

18650 battery 3500mah 18650 battery 3500mah

18650 battery 3500mah

GREEN POWER

18650 lithium battery 18650 lithium battery

18650 lithium battery

GREEN POWER

lithium ion phosphate battery 3.2v lithium ion phosphate battery 3.2v

lithium ion phosphate battery 3.2v

SUNBEAM

2000mah 18650 battery 2000mah 18650 battery

2000mah 18650 battery

SUNBEAM
Back to Previous Category Access to Factory
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP