湿法制备磷酸亚铁锂的方法及其制备的磷酸亚铁锂

    公开(公告)号:WO2008022508A1

    公开(公告)日:2008-02-28

    申请号:PCT/CN2007/000577

    申请日:2007-02-16

    CPC classification number: H01M4/5825 C01B25/45 H01M10/0525

    Abstract: Provided are a method for preparing lithium iron phosphate through wet process and lithium iron phosphate prepared by the same, the steps thereof are as follows: each water-soluble compound containing lithium, iron, phosphorus or doping element M as required is dissolved into water respectively; then are cocurrently placed into a reaction vessel under stirring to give suspension, wherein Li, Fe and P satisfy the formula [mLi+n(1-m)/n M]:pFe:qPO 4 =1:1:1, in this formula, n is valence of doping element, m is mole number of Li, (1-m)/n is mole number of doping element, p and q are mole numbers of Fe and PO 4 respectively; a reductive conductive agent is added; the suspension is spray-dried; the spray-dried product is baked and pulverized. The method is a simple process and can operate successively; mixing of liquid starting materials can make Li + , Fe 2+ , PO 4

    确定策略和计费规则功能实体的方法、装置和系统

    公开(公告)号:WO2013097193A1

    公开(公告)日:2013-07-04

    申请号:PCT/CN2011/085059

    申请日:2011-12-30

    CPC classification number: H04M15/66 H04L12/1407 H04L67/1002 H04L67/1036

    Abstract: 本发明实施例提供一种确定策略和计费规则功能实体的方法、装置和系统。确定策略和计费规则功能实体的方法包括:第一PCRF接收第一路由代理设备发送的包括用户的IP地址的第一请求消息(S101);第一PCRF根据所述用户的IP地址来查询预先存储的IP地址和当前为用户服务的PCRF标识的对应关系,确定当前为所述用户服务的第二PCRF的标识(S102);将携带所述第二PCRF的标识的消息发送给所述第一路由代理设备,以使所述第一路由代理设备根据所述第二PCRF的标识将所述第一请求消息发送到所述第二PCRF(S103)。通过本发明实施例提供的确定PCRF的方法,可以将同一用户的会话路由到相同的PCRF,从而解决了双平面DRA在多PCRF组网情况下,同一用户的会话信息能路由到相同PCRF的问题,提供了可靠的DRA信令网组网。

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