Why are lithium batteries graded?-CSIP

Battery means a mug, tank or other vessel or part of the space of a compound vessel containing an electrolyte result and essence electrodes to produce an electric current,which converts chemical energy into electrical energy. There are positive and negative electrodes. 
 

With the advancement of technology, battery refers to a small device that can produce electrical energy. For illustration, solar cells. The main performance parameters of a battery are electric eventuality, capacity, specific energy and resistance. The use of batteries as a source of energy, you can get a stable voltage, stable current, long time stable power force, by the external influence of veritably small current, and battery structure is simple, easy to carry, easy to charge and discharge operation, not affected by the external climate and temperature, stable and dependable performance, in ultramodern society in all aspects of life play a great part. Focus on lithium steed workers, to partake the story of the lithium assiduity for you! 
 
 
When producing the same batch of batteries, the battery cell manufacturers will classify the batteries according to their discharge test performance into four orders ABCD( Sanyo's way of isolation, as Sanyo and Panasonic's way of isolation has actually come the assiduity standard). 
 
 
A = 2000mah, B = 2200mah, C = 2400mah, D = 2600mah, with the ABCD isolation law on the battery and also also on the colour of the defensive gas cap( the battery will produce gas when discharging and there's a defensive cap on the positive side of the battery, when the battery has deflated to a certain quantum, i.e. when it's nearly reaching its design life, the gas will This is the source of ABCD, and due to the strength of Sanyo and Panasonic, this has come the default way of isolation in the assiduity. 
 

 
A-grade batteries 
 

Generally the plant that uses the cells places orders directly to the cell plant, which arranges product according to the plant's own product capacity and specialized capability, and after a series of battery cell manufacturing processes, eventually produces the battery and delivers it to the client. Before placing an order, the battery product plant will generally communicate parameters similar as battery capacity, consistence, length and range. also the battery made exactly according to the norms of the order is called A product. 
 

 B product cells 
 

 
Any plant that produces a product is bound to have a imperfect rate. also this imperfect rate determines the vitality of a plant, in the lithium battery assiduity, purely by technology, constituents,etc., a first-line lithium battery and third-line lithium battery plant won't have a big gap, but in the product process and product process, the performing imperfect rate gap is veritably large, a first-line manufacturers can do about 2, while the alternate and third line is likely to do 5-10. It's because of this imperfect rate that B-goods are created. 
 
 
In fact, the B product is only a slight gap in capacity, or length, range and consistence doesn't meet the vittles of the order, but the performance is absolutely no reduction, but the price is cheaper than the A product, so there are numerous manufacturers, there are times when the B product directly down from the goods, just a little lower capacity mark. In addition, A products are generally placed in the storehouse if 3- 6 months without shipping, also called B products, of course, this is just a common byword. 
 
 

 C product battery cell 
 
 
C product is indeed that the B product battery in the storehouse placed further than 8 months, if still not packed,can be called C product, C product battery is placed due to the long time, with tone-discharge and dust, humidity aging, so C product battery is the most likely situation is up pack. The C product cell is generally only about 50-60 of the same type of A product cell, and the good bones can reach 70. numerous musketeers in the purchase of mobile phone battery, you feel, just buy back the battery, feel the battery life is okay, but after using a month, you find that not, which principally use C product battery.