Analysis of the cause and explosion type of lithium battery

著者：Iflowpower – Nhà cung cấp trạm điện di động

1: The internal polarization is large. 2: the pole water absorption, reacting the drum with the electrolyte. 3: The quality of the electrolyte itself, performance problem .

4: The amount of liquid in the liquid does not meet the process requirements. 5: assembly The laser welding in the process is poor, leakage, leakage, leakage. 6: dust, polar dust is first easily causing micro-short circuit.

7: The positive and negative poles are thick, the shell is difficult. 8: Nipple sealing problem, steel ball sealing performance is not good to cause gas drum. 9: The housing material exists thickness, and the thickness of the housing deformation.

The type of exploded type decomposing the battery core explosion can be summarized as an external short circuit, internal short circuit, Three kinds of. The external system here refers to the exterior of the battery, which contains short circuits caused by poor insulation design in the battery pack. Mgbe obere sekit dị n&39;èzí batrị batrị, a naghị ebipụ akụkụ eletrọnịkị, na ime nke batrị batrị ga-enwe okpomọkụ dị elu, na-eme ka ikuku electrolyte na-eku ume, na-akwado shea batrị.

When the internal temperature of the battery is high to 135 degrees Celsius, the quality of the diaphragm is closed, the electrochemical reaction is terminated or near termination, the current is plummeted, and the temperature is slowly decreased, and the explosion occurred. However, the fine hole closure rate is too bad, or the fine hole does not close the diaphragm paper, which will make the battery temperature rise, more electrolyte, and finalize the battery housing, and even improve the battery temperature. Material burning and exploding.

The internal short circuit is to be because the brass foil is pulling the membrane of the aluminum foil, or the branches of the lithium atom wear the diaphragm. Agịga ndị a dị mma nwere ike ime ka sekit dị mkpụmkpụ. Because the needle is very fine, there is a certain resistance value, so the current is not necessarily.

Copper aluminum foil burr is caused by processing, and it is observable. Moreover, since the glitch is small, sometimes it will be burnt, so that the battery will return to normal. Ya mere, ihe gbasara nke puru omume nke mgbawa nke burrs kpatara adịghị elu.

N&39;ụzọ dị otú a, ọ ga-ekwe omume ịnweta obere batrị n&39;ime ya site n&39;ime ime nke ọ bụla n&39;ime sel. Agbanyeghị, ihe mgbawa ahụ emeela, mana akwadoro ya na ọnụ ọgụgụ. Therefore, the explosion caused by internal short circuits, it is still due to overcharge.

N&39;ihi na, ọ bụ lithium metal crystallization nke agịga, na ọ bụ obere obere sekit. Ya mere, batrị okpomọkụ ga-eji nwayọọ nwayọọ na-abawanye, na n&39;ikpeazụ elu okpomọkụ ga-electrolyte gas. This situation, whether it is too high to make the material burns, or the outer shell is first striking, so that the air into the lithium metal is violently oxidized, all of which are explosion.

Agbanyeghị, mgbawa a kpatara oke obere sekit dị n&39;ime anaghị adịkarị n&39;oge chaja. Ọ ga-ekwe omume na okpomọkụ batrị adịghị elu ka ihe ahụ kpọọ ọkụ. Mgbe gas pụtara, onye na-azụ ahịa ezughị iji mebie ụlọ batrị, onye na-azụ ahịa ga-akwụsị chaja, na ekwentị mkpanaaka ga-apụ.

N&39;oge a, okpomọkụ nke ọtụtụ obere obere sekit, jiri nwayọọ nwayọọ na-abawanye okpomọkụ nke batrị ahụ, mgbe oge ụfọdụ gasịrị, naanị mgbawa. Nkọwa ndị a na-ahụkarị nke onye na-azụ ahịa bụ iburu ekwentị wee chọpụta na ekwentị ahụ dị ọkụ, wee gbawaa.