Nneɛma a Wɔde Yɛ Nneɛma a Wɔde Yɛ Graphite Anodes

1. Nneɛma a Wɔyɛ no Titiriw

Raw Material for Artificial Graphite Anodes yɛ powder ade a ɛyɛ adwuma a wɔde akwan a ɛyɛ pɛpɛɛpɛ te sɛ pre-carbonization, crushing, purification, ne grading siesie, a high{1}}purity needle coke, petroleum coke, anaa coal-based coke yɛ core substrate. Ɛyɛ ade titiriw a edi kan ma wɔyɛ graphite negative electrode ahorow a wɔde yɛ lithium batere. Ne bo titiriw no gyina sɛ ɛde substrates a ɛkorɔn-ma ma graphitization dwumadie a ɛdi akyire denam nnuru a ɛwɔ mu ne honam fam nhyehyɛɛ ho nhyehyɛeɛ a ɛyɛ pɛpɛɛpɛ so, awieeɛ koraa no ɛma artificial graphite negative electrodes nya conductivity a ɛkyɛn so, cycling stability, ne rate performance, a ɛdi lithium battery ahwehwɛdeɛ titire a ɛfa "tumi a ɛkorɔn, nkwa tenten, ne ahobanbɔ a ɛkorɔn" ho.

2.Key Mfiridwuma Nsusuwii

3.Core Nneɛma a ɛwɔ Product no mu

(1) Carbon a Ɛdɔɔso ne Efĩ a Ɛsua

Carbon a ɛwɔ mu a ɛyɛ pintinn Ɛboro anaa ɛyɛ pɛ 98.5% (high-end power grade specifications Ɛboro anaasɛ ɛyɛ pɛ 99.5%), nsõ a ɛwɔ mu no nnu anaa ɛyɛ pɛ 0.3% (dadeɛ efĩ te sɛ Fe, Ni, Cu nyinaa nnu anaa ɛyɛ pɛ 50ppm), sulfur a ɛwɔ mu no sua anaasɛ ɛyɛ pɛ 0.1%, nitrogen dodoɔ Nea ennu anaasɛ ɛne 0.2% yɛ pɛ; Efĩ a ɛba fam su no betumi akwati afã horow a ɛbɛba bere a batere no reyɛ kyinhyia, atew electrolyte a ɛporɔw so, na ahwɛ ahu sɛ electrode a enye no ntamgyinafo no gyina pintinn.

(2) Nneɛma nketenkete a wɔayɛ no yiye ne nneɛma nketenkete no kɛse a wɔkyekyɛ

Wɔ Raw Material for Artificial Graphite Anodes ho no, nneɛma nketenkete no yɛ kurukuruwa anaasɛ ɛnyɛ pɛpɛɛpɛ, na ne soro yɛ torotoro na enni anoano a ɛyɛ nnam (sɛnea ɛbɛyɛ a wɔrensɛe substrate no bere a wɔde electrode rekata so); ne particle kɛseɛ nkyekyɛmu no yɛ concentrated (D50=10-50μm, Span=0.8-1.2), na wobetumi ayɛ no sɛnea ne thickness ahwehwɛde a negative electrode mprɛte. Ɛfata ma nneɛma a wɔyɛ a ɛsono compaction densities (1.6-1.8g/cm3) na ama electrode mprɛte no ayɛ pɛpɛɛpɛ.

(3) Graphitization Adwumayɛ a Ɛyɛ Paara

Tumi kɛse wɔ hɔ a ɛbɛma graphitization℃atu mpɔn. Afei high-temperature graphitization wɔ 2800-3000℃, graphitization℃no betumi adu bɛboro 90%, na lattice constant (c0) no yɛ Less than anaasɛ ɛne 0.3356nm yɛ pɛ; Wɔ graphitization nhyehyɛe no mu no, volume shrinkage rate no kɔ so yɛ nea ɛyɛ den (<=5%), a ebetumi atew asiane a ɛwɔ hɔ sɛ ɛbɛpaapae wɔ electrode nneɛma a enye mu na ɛtew production losses so.

(4 )Nneyɛe Pa a Wotumi Sesa

Powder no tumi sen yiye (angle of repose<=38℃) na ɛnyɛ den sɛ wɔde bɛfra nneɛma a wɔde kyekyere nneɛma (te sɛ PVDF) mu pɛpɛɛpɛ ma ayɛ slurry nhyehyɛe a ɛyɛ den; Wɔ compaction nhyehyɛe no mu no, ɛwɔ plasticity a emu yɛ den na ɛnyɛ nea ɛyɛ mmerɛw sɛ ɛbɛbubu nneɛma nketenkete, na ɛhwɛ hu sɛ mfiri no wɔ electrode no mu na ɛsakra ma ɛne automated coating production lines hyia.

 

 

4. Mmeae Titiriw a Wɔde Di Dwuma

(1) Tumi Lithium Batere Field

Wɔde yɛ artificial graphite negative electrodes ma ahoɔden foforo kar ahoɔden batere, a conductivity a ɛkorɔn ne polarization su a ɛba fam, ɛma battery rate charge ne discharge adwumayɛ tu mpɔn (ɛboa 1C-3C ntɛmntɛm charge), bere a hwɛ hu sɛ cycle nkwa bɛboro 2000 mpɛn, di ahiade ahorow a kar kwan ne ɔsom nkwa.

(2) Ahoɔden a Wɔde Siesie Lithium Battery Field

Ɛfata ma lithium battery negative electrodes wɔ ahoɔden a wɔkora so anyinam ahoɔden adwumayɛbea ahorow (te sɛ photovoltaic ne mframa ahoɔden a ɛboa ahoɔden a wɔkora so), efĩ a ɛba fam no betumi atew battery no ankasa-discharge rate (ɔsram biara ankasa-discharge Ennu anaasɛ ɛyɛ pɛ 3%), na graphitization adwumayɛ a ɛyɛ pintinn hwɛ hu sɛ battery no tumi asɛe dodow a ɛba fam wɔ bere tenten-mu charge-discharge cycles (1000 kyinhyia asɛe Less sen anaasɛ ɛne no yɛ pɛ 15%).

(3) Ɛlektrɔnik Nneɛma a Wɔde Di Dwuma a Wɔde Di Dwuma Lithium Battery Field

Wɔde di dwuma sɛ electrode a enye ma lithium battery wɔ consumer electronic devices te sɛ smartphones ne laptops mu, customized particle size distribution no betumi ayɛ thinning of the electrode (electrode thickness<=80μm) na ama battery ahoɔden density atu mpɔn (a high-capacity positive electrodes, ebetumi anya volumetric energy density a ɛyɛ Kɛse sen anaasɛ ɛyɛ pɛ 4.5Wh/cm3) na ɛyɛ adwuma.

(4) Lithium Batere a Wɔde Yɛ Adwuma Titiriw

Wɔde di dwuma sɛ electrode a enye ma lithium batere wɔ mmeae a ɛhɔ yɛ hyew kɛse (te sɛ mfiridwuma mu mfiri a wɔde di dwuma) anaa mmeae a ɛhɔ yɛ hyew a ɛba fam (te sɛ abɔnten mfiri), batere no kura nsu a ɛtwetwe adwumayɛ a ɛyɛ den (tumi a ɛkora so kɛse sen anaasɛ ɛyɛ pɛ 80%) wɔ -20℃-60℃denam efĩ dodow ne graphitization℃a ɛhwɛ so.

Tags a ɛyɛ hyew .: raw nneɛma a wɔde yɛ graphite anodes a wɔde ayɛ, China raw material ma artificial graphite anodes manufacturers