Muchidimbu

Crush yakanaka kwazvonormalbvunzo kuona kuchengetedzwa kwe cells, kutevedzera kubonderana kwe cellskana chigadzirwa chekupedzisirasmukushandiswa kwezuva nezuva. Kazhinji kune marudzi maviri ekupwanyamiedzo: flatkupwanyauye kusarurakupwanya. Kuenzaniswa neflatkupwanya, vasaraindentationinokonzerwa ne spherical kana cylindrical indenter inowanzokonzerasero kusashanda. Iyo inopinza iyo indenter, iyo yakanyanya kuomesera kushushikana pane yakakosha chimiro chelithium bhatiri, zvakanyanya kuputika kwemukati.core, izvo zvinokonzeresa deformation uye kutamiswa kwepakati, uye zvinototungamira kune zvakakomba mhedzisiro senge electrolyte leakage kana kunyange moto. Saka zvinoita seikupwanyatungamira kudeactivationzve cell? Herekusuma iwe kune yemukati dhizaini shanduko yepakati mune yemunharaunda extrusion bvunzo.

Crushprocess:

• Simba rekusvina rinoshandiswa kune yakavharirwa sero kutanga, uye iyo yakakomberedzwa inokanganisa. Simba rinobva raendeswa mukati mebhatiri, uye gungano resero rinotangawo kukanganisa.
• Nekumwe kudzvanywa kwemusoro wekupwanya, deformation iri kuwedzera uye nzvimbo inogadzirwa. Panguva imwecheteyo, nzvimbo yepakati pakati pega yega electrode layer inopfupiswa zvishoma nezvishoma. Pasi pekumanikidzwa kunoramba kuripo, muunganidzi wezvino akakotama uye akaremara, uye mabhendi ekugera anoumbwa. Kana iyo deformation ye electrode zvinhu inosvika painogumira, iyo electrode zvinhu inoburitsa kuputika.
• Nekuwedzera kwe deformation, kuputika zvishoma nezvishoma kunowedzera kune iye zvino muunganidzi, iyo ichabvaruka uye inobudisa ductile fracture. Uye zvakare, iyo radial crack yakarebeswa nekuda kwekuwedzera kwekushushikana uye radial displacement.
• Panguva ino, simba rekuwedzera rinoramba richidzvanya sero, zvichiita kuti mamwe ma electrode aite deformation, izvo zvinotungamira mukuwedzera kweshear zone, shanduko yekona yekona (45 °), uye kuwedzera kuwedzera kweshear zone renji.
• Pakupedzisira, sezvo diaphragm inoramba ichitambanudzwa uye yakamonyoroka, mitswe inoenda kudiaphragm. Kana yasvika painodzima, diaphragm inobvaruka uye maelectrodes ari padyo anosangana, achiita yemukati pfupi-circuit. Panguva ino, hombe pfupi-yekutenderera ikozvino inogadzirwa panguva pfupi-yedunhu, zvichiita kuti kupisa kwakanyanya uye kukurumidza kukwira kwekushisa, izvo zvinokonzeresa maitiro eparutivi mukati mesero uye pakupedzisira kupisa kwekupisa kunogona kuitika.

Pfupiso:

Crush test imhando yekushungurudzwa kwemakanika. Mechanical abuse idambudziko risingadzivisiki rekuchengetedza mukushandiswa kwezuva nezuva kwe lithium-ion mabhatiri, izvo zvinogona kutungamirira pakuputika kwe diaphragm uye kukonzera mukati mepfupi pfupi. Zvisinei, nekuda kwechimiro chemusoro wekupwanya, ukuru hwekupwanya kudzvinyirira uye simba resero pacharo rinosiyana, migumisiro yemuedzo wekupwanya inowanzosiyana zvikuru. Optimization pane sero zvinhu kana chimiro chinodiwa kudzivirira kudzimwa kwesero rinounzwa nekupwanya bvunzo zvakanyanya sezvinobvira. Semuyenzaniso, kushandiswa kweyakachengeteka, yakawanda ductile diaphragm kana kunatsurudza pakupisa kupisa kuita kwesero kunogona kudzivirira zvakanyanya kushinha kana kupisa kwemukati kunoitika.